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423641 = 676323
BaseRepresentation
bin1100111011011011001
3210112010102
41213123121
5102024031
613025145
73413051
oct1473331
9715112
10423641
1126a319
121851b5
1311aa9a
14b0561
15857cb
hex676d9

423641 has 4 divisors (see below), whose sum is σ = 430032. Its totient is φ = 417252.

The previous prime is 423617. The next prime is 423649. The reversal of 423641 is 146324.

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 423641 - 214 = 407257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (423649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3095 + ... + 3228.

It is an arithmetic number, because the mean of its divisors is an integer number (107508).

2423641 is an apocalyptic number.

It is an amenable number.

423641 is a deficient number, since it is larger than the sum of its proper divisors (6391).

423641 is an equidigital number, since it uses as much as digits as its factorization.

423641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6390.

The product of its digits is 576, while the sum is 20.

The square root of 423641 is about 650.8771005343. The cubic root of 423641 is about 75.1045061637.

Adding to 423641 its reverse (146324), we get a palindrome (569965).

The spelling of 423641 in words is "four hundred twenty-three thousand, six hundred forty-one".

Divisors: 1 67 6323 423641