23897913 has 16 divisors (see below), whose sum is σ = 34660416. Its totient is φ = 14558400.

The previous prime is 23897899. The next prime is 23897917. The reversal of 23897913 is 31979832.

It is not a de Polignac number, because 23897913 - 2¹² = 23893817 is a prime.

It is a super-2 number, since 2×23897913² = 1142220491511138, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23897917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 906 + ... + 6972.

It is an arithmetic number, because the mean of its divisors is an integer number (2166276).

Almost surely, 2^23897913 is an apocalyptic number.

It is an amenable number.

23897913 is a deficient number, since it is larger than the sum of its proper divisors (10762503).

23897913 is a wasteful number, since it uses less digits than its factorization.

23897913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6184.

The product of its digits is 81648, while the sum is 42.

The square root of 23897913 is about 4888.5491712777. The cubic root of 23897913 is about 288.0403468744.

The spelling of 23897913 in words is "twenty-three million, eight hundred ninety-seven thousand, nine hundred thirteen".