23957897 has 4 divisors (see below), whose sum is σ = 24091920. Its totient is φ = 23823876.

The previous prime is 23957893. The next prime is 23957929. The reversal of 23957897 is 79875932.

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 23957897 - 2² = 23957893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23957893) 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, 66743 + ... + 67100.

It is an arithmetic number, because the mean of its divisors is an integer number (6022980).

Almost surely, 2^23957897 is an apocalyptic number.

It is an amenable number.

23957897 is a deficient number, since it is larger than the sum of its proper divisors (134023).

23957897 is a wasteful number, since it uses less digits than its factorization.

23957897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134022.

The product of its digits is 952560, while the sum is 50.

The square root of 23957897 is about 4894.6804798679. The cubic root of 23957897 is about 288.2811402366.

The spelling of 23957897 in words is "twenty-three million, nine hundred fifty-seven thousand, eight hundred ninety-seven".