37223421 has 8 divisors (see below), whose sum is σ = 52550784. Its totient is φ = 23355840.

The previous prime is 37223419. The next prime is 37223441. The reversal of 37223421 is 12432273.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 37223421 - 2¹ = 37223419 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 37223391 and 37223400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37223441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364885 + ... + 364986.

It is an arithmetic number, because the mean of its divisors is an integer number (6568848).

Almost surely, 2^37223421 is an apocalyptic number.

It is an amenable number.

37223421 is a deficient number, since it is larger than the sum of its proper divisors (15327363).

37223421 is a wasteful number, since it uses less digits than its factorization.

37223421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729891.

The product of its digits is 2016, while the sum is 24.

The square root of 37223421 is about 6101.0999827900. The cubic root of 37223421 is about 333.8915498832.

Adding to 37223421 its reverse (12432273), we get a palindrome (49655694).

The spelling of 37223421 in words is "thirty-seven million, two hundred twenty-three thousand, four hundred twenty-one".