72773672 has 32 divisors (see below), whose sum is σ = 143147520. Its totient is φ = 34643520.

The previous prime is 72773663. The next prime is 72773677. The reversal of 72773672 is 27637727.

It is not an unprimeable number, because it can be changed into a prime (72773677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11297 + ... + 16527.

It is an arithmetic number, because the mean of its divisors is an integer number (4473360).

Almost surely, 2^72773672 is an apocalyptic number.

It is an amenable number.

72773672 is a deficient number, since it is larger than the sum of its proper divisors (70373848).

72773672 is a wasteful number, since it uses less digits than its factorization.

72773672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5321 (or 5317 counting only the distinct ones).

The product of its digits is 172872, while the sum is 41.

The square root of 72773672 is about 8530.7486189666. The cubic root of 72773672 is about 417.5015540119.

The spelling of 72773672 in words is "seventy-two million, seven hundred seventy-three thousand, six hundred seventy-two".