23165964 has 36 divisors (see below), whose sum is σ = 59271576. Its totient is φ = 7627968.

The previous prime is 23165963. The next prime is 23165969. The reversal of 23165964 is 46956132.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (23165963) 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 11 ways as a sum of consecutive naturals, for example, 889 + ... + 6864.

Almost surely, 2^23165964 is an apocalyptic number.

It is an amenable number.

23165964 is an abundant number, since it is smaller than the sum of its proper divisors (36105612).

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

23165964 is a wasteful number, since it uses less digits than its factorization.

23165964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7846 (or 7841 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 23165964 is about 4813.1033647741. The cubic root of 23165964 is about 285.0690875907.

The spelling of 23165964 in words is "twenty-three million, one hundred sixty-five thousand, nine hundred sixty-four".