23398972 has 12 divisors (see below), whose sum is σ = 41004376. Its totient is φ = 11683440.

The previous prime is 23398967. The next prime is 23398979. The reversal of 23398972 is 27989332.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23398979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363 + ... + 6850.

Almost surely, 2^23398972 is an apocalyptic number.

It is an amenable number.

23398972 is a deficient number, since it is larger than the sum of its proper divisors (17605404).

23398972 is a wasteful number, since it uses less digits than its factorization.

23398972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8028 (or 8026 counting only the distinct ones).

The product of its digits is 163296, while the sum is 43.

The square root of 23398972 is about 4837.2483913895. The cubic root of 23398972 is about 286.0216620103.

It can be divided in two parts, 2339 and 8972, that added together give a palindrome (11311).

The spelling of 23398972 in words is "twenty-three million, three hundred ninety-eight thousand, nine hundred seventy-two".