23915197 has 4 divisors (see below), whose sum is σ = 24062080. Its totient is φ = 23768316.

The previous prime is 23915191. The next prime is 23915201. The reversal of 23915197 is 79151932.

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 23915197 - 2¹⁵ = 23882429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23915191) 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, 73197 + ... + 73522.

It is an arithmetic number, because the mean of its divisors is an integer number (6015520).

Almost surely, 2^23915197 is an apocalyptic number.

It is an amenable number.

23915197 is a deficient number, since it is larger than the sum of its proper divisors (146883).

23915197 is a wasteful number, since it uses less digits than its factorization.

23915197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146882.

The product of its digits is 17010, while the sum is 37.

The square root of 23915197 is about 4890.3166564140. The cubic root of 23915197 is about 288.1097712019.

The spelling of 23915197 in words is "twenty-three million, nine hundred fifteen thousand, one hundred ninety-seven".