72755212 has 6 divisors (see below), whose sum is σ = 127321628. Its totient is φ = 36377604.

The previous prime is 72755203. The next prime is 72755251. The reversal of 72755212 is 21255727.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9094398 + ... + 9094405.

Almost surely, 2^72755212 is an apocalyptic number.

It is an amenable number.

72755212 is a deficient number, since it is larger than the sum of its proper divisors (54566416).

72755212 is a wasteful number, since it uses less digits than its factorization.

72755212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18188807 (or 18188805 counting only the distinct ones).

The product of its digits is 9800, while the sum is 31.

The square root of 72755212 is about 8529.6665819949. Note that the first 3 decimals coincide. The cubic root of 72755212 is about 417.4662494380.

The spelling of 72755212 in words is "seventy-two million, seven hundred fifty-five thousand, two hundred twelve".