23981896 has 8 divisors (see below), whose sum is σ = 44966070. Its totient is φ = 11990944.

The previous prime is 23981863. The next prime is 23981897. The reversal of 23981896 is 69818932.

It can be written as a sum of positive squares in only one way, i.e., 23872996 + 108900 = 4886^2 + 330^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (23981897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1498861 + ... + 1498876.

Almost surely, 2^23981896 is an apocalyptic number.

It is an amenable number.

23981896 is a deficient number, since it is larger than the sum of its proper divisors (20984174).

23981896 is a wasteful number, since it uses less digits than its factorization.

23981896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2997743 (or 2997739 counting only the distinct ones).

The product of its digits is 186624, while the sum is 46.

The square root of 23981896 is about 4897.1314052208. The cubic root of 23981896 is about 288.3773666884.

The spelling of 23981896 in words is "twenty-three million, nine hundred eighty-one thousand, eight hundred ninety-six".