72947908 has 24 divisors (see below), whose sum is σ = 139827744. Its totient is φ = 33024000.

The previous prime is 72947893. The next prime is 72947921. The reversal of 72947908 is 80974927.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8083 + ... + 14533.

It is an arithmetic number, because the mean of its divisors is an integer number (5826156).

Almost surely, 2^72947908 is an apocalyptic number.

It is an amenable number.

72947908 is a deficient number, since it is larger than the sum of its proper divisors (66879836).

72947908 is a wasteful number, since it uses less digits than its factorization.

72947908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6723 (or 6721 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 72947908 is about 8540.9547475677. The cubic root of 72947908 is about 417.8344849609.

The spelling of 72947908 in words is "seventy-two million, nine hundred forty-seven thousand, nine hundred eight".