72611612 has 12 divisors (see below), whose sum is σ = 130504920. Its totient is φ = 35324496.

The previous prime is 72611611. The next prime is 72611647. The reversal of 72611612 is 21611627.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72611611) 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, 245162 + ... + 245457.

It is an arithmetic number, because the mean of its divisors is an integer number (10875410).

Almost surely, 2^72611612 is an apocalyptic number.

It is an amenable number.

72611612 is a deficient number, since it is larger than the sum of its proper divisors (57893308).

72611612 is a wasteful number, since it uses less digits than its factorization.

72611612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490660 (or 490658 counting only the distinct ones).

The product of its digits is 1008, while the sum is 26.

The square root of 72611612 is about 8521.2447447541. The cubic root of 72611612 is about 417.1914116828.

The spelling of 72611612 in words is "seventy-two million, six hundred eleven thousand, six hundred twelve".