23915982 has 16 divisors (see below), whose sum is σ = 48297600. Its totient is φ = 7894392.

The previous prime is 23915977. The next prime is 23915989. The reversal of 23915982 is 28951932.

It is a self number, because there is not a number n which added to its sum of digits gives 23915982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23915989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18732 + ... + 19967.

It is an arithmetic number, because the mean of its divisors is an integer number (3018600).

Almost surely, 2^23915982 is an apocalyptic number.

23915982 is an abundant number, since it is smaller than the sum of its proper divisors (24381618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23915982 is a wasteful number, since it uses less digits than its factorization.

23915982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38807.

The product of its digits is 38880, while the sum is 39.

The square root of 23915982 is about 4890.3969164067. The cubic root of 23915982 is about 288.1129235029.

The spelling of 23915982 in words is "twenty-three million, nine hundred fifteen thousand, nine hundred eighty-two".