82618972 has 12 divisors (see below), whose sum is σ = 144680200. Its totient is φ = 41281776.

The previous prime is 82618951. The next prime is 82618981. The reversal of 82618972 is 27981628.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

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, 718 + ... + 12874.

Almost surely, 2^82618972 is an apocalyptic number.

It is an amenable number.

82618972 is a deficient number, since it is larger than the sum of its proper divisors (62061228).

82618972 is a wasteful number, since it uses less digits than its factorization.

82618972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13860 (or 13858 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The square root of 82618972 is about 9089.4978959236. The cubic root of 82618972 is about 435.5385446852.

The spelling of 82618972 in words is "eighty-two million, six hundred eighteen thousand, nine hundred seventy-two".