72212704 has 24 divisors (see below), whose sum is σ = 142451568. Its totient is φ = 36034560.

The previous prime is 72212683. The next prime is 72212713. The reversal of 72212704 is 40721227.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16509 + ... + 20419.

It is an arithmetic number, because the mean of its divisors is an integer number (5935482).

Almost surely, 2^72212704 is an apocalyptic number.

It is an amenable number.

72212704 is a deficient number, since it is larger than the sum of its proper divisors (70238864).

72212704 is a wasteful number, since it uses less digits than its factorization.

72212704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4498 (or 4490 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 72212704 is about 8497.8058344493. The cubic root of 72212704 is about 416.4260305107.

The spelling of 72212704 in words is "seventy-two million, two hundred twelve thousand, seven hundred four".