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37421 = 231627
BaseRepresentation
bin1001001000101101
31220022222
421020231
52144141
6445125
7214046
oct111055
956288
1037421
112612a
12197a5
1314057
14d8cd
15b14b
hex922d

37421 has 4 divisors (see below), whose sum is σ = 39072. Its totient is φ = 35772.

The previous prime is 37409. The next prime is 37423. The reversal of 37421 is 12473.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 37421 - 26 = 37357 is a prime.

It is a d-powerful number, because it can be written as 37 + 74 + 43 + 215 + 1 .

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 37421.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 37421.

It is not an unprimeable number, because it can be changed into a prime (37423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 791 + ... + 836.

It is an arithmetic number, because the mean of its divisors is an integer number (9768).

237421 is an apocalyptic number.

It is an amenable number.

37421 is a deficient number, since it is larger than the sum of its proper divisors (1651).

37421 is a wasteful number, since it uses less digits than its factorization.

37421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650.

The product of its digits is 168, while the sum is 17.

The square root of 37421 is about 193.4450826462. The cubic root of 37421 is about 33.4481264447.

Adding to 37421 its reverse (12473), we get a palindrome (49894).

The spelling of 37421 in words is "thirty-seven thousand, four hundred twenty-one".

Divisors: 1 23 1627 37421