72511976 has 32 divisors (see below), whose sum is σ = 143354880. Its totient is φ = 34334400.

The previous prime is 72511969. The next prime is 72511979. The reversal of 72511976 is 67911527.

It is not an unprimeable number, because it can be changed into a prime (72511979) 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, 8546 + ... + 14766.

It is an arithmetic number, because the mean of its divisors is an integer number (4479840).

Almost surely, 2^72511976 is an apocalyptic number.

It is an amenable number.

72511976 is a deficient number, since it is larger than the sum of its proper divisors (70842904).

72511976 is a wasteful number, since it uses less digits than its factorization.

72511976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6305 (or 6301 counting only the distinct ones).

The product of its digits is 26460, while the sum is 38.

The square root of 72511976 is about 8515.3964088585. The cubic root of 72511976 is about 417.0005041524. Note that the first 3 decimals are identical.

The spelling of 72511976 in words is "seventy-two million, five hundred eleven thousand, nine hundred seventy-six".