23621164 has 12 divisors (see below), whose sum is σ = 47242384. Its totient is φ = 10123344.

The previous prime is 23621113. The next prime is 23621183. The reversal of 23621164 is 46112632.

23621164 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421779 + ... + 421834.

Almost surely, 2^23621164 is an apocalyptic number.

It is an amenable number.

23621164 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23621164 is a wasteful number, since it uses less digits than its factorization.

23621164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843624 (or 843622 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 23621164 is about 4860.1609026862. The cubic root of 23621164 is about 286.9241464080.

Adding to 23621164 its reverse (46112632), we get a palindrome (69733796).

The spelling of 23621164 in words is "twenty-three million, six hundred twenty-one thousand, one hundred sixty-four".