23057957 has 4 divisors (see below), whose sum is σ = 24831660. Its totient is φ = 21284256.

The previous prime is 23057941. The next prime is 23057971. The reversal of 23057957 is 75975032.

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 3996001 + 19061956 = 1999^2 + 4366^2 .

It is a cyclic number.

It is not a de Polignac number, because 23057957 - 2⁴ = 23057941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23057957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23057927) 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, 886832 + ... + 886857.

It is an arithmetic number, because the mean of its divisors is an integer number (6207915).

Almost surely, 2^23057957 is an apocalyptic number.

It is an amenable number.

23057957 is a deficient number, since it is larger than the sum of its proper divisors (1773703).

23057957 is a wasteful number, since it uses less digits than its factorization.

23057957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773702.

The product of its (nonzero) digits is 66150, while the sum is 38.

The square root of 23057957 is about 4801.8701565119. The cubic root of 23057957 is about 284.6253700848.

The spelling of 23057957 in words is "twenty-three million, fifty-seven thousand, nine hundred fifty-seven".