23891064 has 16 divisors (see below), whose sum is σ = 59727720. Its totient is φ = 7963680.

The previous prime is 23891051. The next prime is 23891117. The reversal of 23891064 is 46019832.

It is a congruent 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, 497707 + ... + 497754.

Almost surely, 2^23891064 is an apocalyptic number.

23891064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23891064 is an abundant number, since it is smaller than the sum of its proper divisors (35836656).

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

23891064 is a wasteful number, since it uses less digits than its factorization.

23891064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995470 (or 995466 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 23891064 is about 4887.8486064935. The cubic root of 23891064 is about 288.0128273608.

The spelling of 23891064 in words is "twenty-three million, eight hundred ninety-one thousand, sixty-four".