72801212 has 12 divisors (see below), whose sum is σ = 138984216. Its totient is φ = 33091440.

The previous prime is 72801181. The next prime is 72801227. The reversal of 72801212 is 21210827.

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, 827243 + ... + 827330.

It is an arithmetic number, because the mean of its divisors is an integer number (11582018).

Almost surely, 2^72801212 is an apocalyptic number.

It is an amenable number.

72801212 is a deficient number, since it is larger than the sum of its proper divisors (66183004).

72801212 is a wasteful number, since it uses less digits than its factorization.

72801212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654588 (or 1654586 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 72801212 is about 8532.3626270805. The cubic root of 72801212 is about 417.5542129034.

The spelling of 72801212 in words is "seventy-two million, eight hundred one thousand, two hundred twelve".