82645804 has 12 divisors (see below), whose sum is σ = 145735128. Its totient is φ = 41007200.

The previous prime is 82645793. The next prime is 82645811. The reversal of 82645804 is 40854628.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78337 + ... + 79384.

It is an arithmetic number, because the mean of its divisors is an integer number (12144594).

Almost surely, 2^82645804 is an apocalyptic number.

It is an amenable number.

82645804 is a deficient number, since it is larger than the sum of its proper divisors (63089324).

82645804 is a wasteful number, since it uses less digits than its factorization.

82645804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157856 (or 157854 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 82645804 is about 9090.9737652245. The cubic root of 82645804 is about 435.5856892456.

The spelling of 82645804 in words is "eighty-two million, six hundred forty-five thousand, eight hundred four".