72616408 has 16 divisors (see below), whose sum is σ = 136394280. Its totient is φ = 36244608.

The previous prime is 72616391. The next prime is 72616421. The reversal of 72616408 is 80461627.

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, 2910 + ... + 12397.

Almost surely, 2^72616408 is an apocalyptic number.

It is an amenable number.

72616408 is a deficient number, since it is larger than the sum of its proper divisors (63777872).

72616408 is a wasteful number, since it uses less digits than its factorization.

72616408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15906 (or 15902 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 72616408 is about 8521.5261543928. The cubic root of 72616408 is about 417.2005966506.

The spelling of 72616408 in words is "seventy-two million, six hundred sixteen thousand, four hundred eight".