72047612 has 24 divisors (see below), whose sum is σ = 155180256. Its totient is φ = 28502208.

The previous prime is 72047603. The next prime is 72047671. The reversal of 72047612 is 21674027.

It is a congruent number.

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, 98603 + ... + 99330.

It is an arithmetic number, because the mean of its divisors is an integer number (6465844).

Almost surely, 2^72047612 is an apocalyptic number.

It is an amenable number.

72047612 is an abundant number, since it is smaller than the sum of its proper divisors (83132644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72047612 is a wasteful number, since it uses less digits than its factorization.

72047612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197957 (or 197955 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 72047612 is about 8488.0864745831. The cubic root of 72047612 is about 416.1084452851.

The spelling of 72047612 in words is "seventy-two million, forty-seven thousand, six hundred twelve".