82128675 has 12 divisors (see below), whose sum is σ = 135786200. Its totient is φ = 43801920.

The previous prime is 82128647. The next prime is 82128707. The reversal of 82128675 is 57682128.

It is not a de Polignac number, because 82128675 - 2¹⁰ = 82127651 is a prime.

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, 547450 + ... + 547599.

Almost surely, 2^82128675 is an apocalyptic number.

82128675 is a deficient number, since it is larger than the sum of its proper divisors (53657525).

82128675 is a wasteful number, since it uses less digits than its factorization.

82128675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095062 (or 1095057 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 82128675 is about 9062.4872413703. The cubic root of 82128675 is about 434.6752762193.

The spelling of 82128675 in words is "eighty-two million, one hundred twenty-eight thousand, six hundred seventy-five".