82081968 has 40 divisors (see below), whose sum is σ = 215218368. Its totient is φ = 26951232.

The previous prime is 82081931. The next prime is 82081981. The reversal of 82081968 is 86918028.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9546 + ... + 15977.

Almost surely, 2^82081968 is an apocalyptic number.

It is an amenable number.

82081968 is an abundant number, since it is smaller than the sum of its proper divisors (133136400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82081968 is a wasteful number, since it uses less digits than its factorization.

82081968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25601 (or 25595 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 82081968 is about 9059.9099333272. The cubic root of 82081968 is about 434.5928599052.

The spelling of 82081968 in words is "eighty-two million, eighty-one thousand, nine hundred sixty-eight".