23926057 has 4 divisors (see below), whose sum is σ = 23940036. Its totient is φ = 23912080.

The previous prime is 23926043. The next prime is 23926061. The reversal of 23926057 is 75062932.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11669056 + 12257001 = 3416^2 + 3501^2 .

It is a cyclic number.

It is not a de Polignac number, because 23926057 - 2¹⁹ = 23401769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23926037) 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, 3994 + ... + 7987.

It is an arithmetic number, because the mean of its divisors is an integer number (5985009).

Almost surely, 2^23926057 is an apocalyptic number.

23926057 is the 3994-th pentagonal number.

It is an amenable number.

23926057 is a deficient number, since it is larger than the sum of its proper divisors (13979).

23926057 is a wasteful number, since it uses less digits than its factorization.

23926057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13978.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 23926057 is about 4891.4268879336. The cubic root of 23926057 is about 288.1533752559.

Adding to 23926057 its reverse (75062932), we get a palindrome (98988989).

The spelling of 23926057 in words is "twenty-three million, nine hundred twenty-six thousand, fifty-seven".