72531662 has 24 divisors (see below), whose sum is σ = 127761624. Its totient is φ = 30790032.

The previous prime is 72531659. The next prime is 72531689. The reversal of 72531662 is 26613527.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7028 + ... + 13944.

It is an arithmetic number, because the mean of its divisors is an integer number (5323401).

Almost surely, 2^72531662 is an apocalyptic number.

72531662 is a deficient number, since it is larger than the sum of its proper divisors (55229962).

72531662 is a wasteful number, since it uses less digits than its factorization.

72531662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7040 (or 7033 counting only the distinct ones).

The product of its digits is 15120, while the sum is 32.

The square root of 72531662 is about 8516.5522366742. The cubic root of 72531662 is about 417.0382373638.

The spelling of 72531662 in words is "seventy-two million, five hundred thirty-one thousand, six hundred sixty-two".