72772612 has 12 divisors (see below), whose sum is σ = 138929616. Its totient is φ = 33078440.

The previous prime is 72772589. The next prime is 72772613. The reversal of 72772612 is 21627727.

It is not an unprimeable number, because it can be changed into a prime (72772613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 826918 + ... + 827005.

It is an arithmetic number, because the mean of its divisors is an integer number (11577468).

Almost surely, 2^72772612 is an apocalyptic number.

It is an amenable number.

72772612 is a deficient number, since it is larger than the sum of its proper divisors (66157004).

72772612 is a wasteful number, since it uses less digits than its factorization.

72772612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653938 (or 1653936 counting only the distinct ones).

The product of its digits is 16464, while the sum is 34.

The square root of 72772612 is about 8530.6864905469. The cubic root of 72772612 is about 417.4995269336.

It can be divided in two parts, 7277 and 2612, that added together give a palindrome (9889).

The spelling of 72772612 in words is "seventy-two million, seven hundred seventy-two thousand, six hundred twelve".