72868064 has 12 divisors (see below), whose sum is σ = 143459064. Its totient is φ = 36434016.

The previous prime is 72868043. The next prime is 72868087. The reversal of 72868064 is 46086827.

It is a super-2 number, since 2×72868064² = 10619509502216192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1138532 + ... + 1138595.

It is an arithmetic number, because the mean of its divisors is an integer number (11954922).

Almost surely, 2^72868064 is an apocalyptic number.

It is an amenable number.

72868064 is a deficient number, since it is larger than the sum of its proper divisors (70591000).

72868064 is a wasteful number, since it uses less digits than its factorization.

72868064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277137 (or 2277129 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 72868064 is about 8536.2792831538. The cubic root of 72868064 is about 417.6819845592.

The spelling of 72868064 in words is "seventy-two million, eight hundred sixty-eight thousand, sixty-four".