23211964 has 12 divisors (see below), whose sum is σ = 41287288. Its totient is φ = 11415600.

The previous prime is 23211961. The next prime is 23211973. The reversal of 23211964 is 46911232.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23211961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47322 + ... + 47809.

Almost surely, 2^23211964 is an apocalyptic number.

It is an amenable number.

23211964 is a deficient number, since it is larger than the sum of its proper divisors (18075324).

23211964 is a wasteful number, since it uses less digits than its factorization.

23211964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95196 (or 95194 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 23211964 is about 4817.8796165948. The cubic root of 23211964 is about 285.2576473834.

The spelling of 23211964 in words is "twenty-three million, two hundred eleven thousand, nine hundred sixty-four".