72478712 has 16 divisors (see below), whose sum is σ = 136392360. Its totient is φ = 36107424.

The previous prime is 72478687. The next prime is 72478723. The reversal of 72478712 is 21787427.

It is a happy number.

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, 14138 + ... + 18569.

Almost surely, 2^72478712 is an apocalyptic number.

It is an amenable number.

72478712 is a deficient number, since it is larger than the sum of its proper divisors (63913648).

72478712 is a wasteful number, since it uses less digits than its factorization.

72478712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32990 (or 32986 counting only the distinct ones).

The product of its digits is 43904, while the sum is 38.

The square root of 72478712 is about 8513.4430167823. The cubic root of 72478712 is about 416.9367297382.

The spelling of 72478712 in words is "seventy-two million, four hundred seventy-eight thousand, seven hundred twelve".