82085644 has 24 divisors (see below), whose sum is σ = 149746688. Its totient is φ = 39327120.

The previous prime is 82085623. The next prime is 82085657. The reversal of 82085644 is 44658028.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9559 + ... + 15985.

Almost surely, 2^82085644 is an apocalyptic number.

It is an amenable number.

82085644 is a deficient number, since it is larger than the sum of its proper divisors (67661044).

82085644 is a wasteful number, since it uses less digits than its factorization.

82085644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6565 (or 6563 counting only the distinct ones).

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

The square root of 82085644 is about 9060.1128028298. The cubic root of 82085644 is about 434.5993474832.

The spelling of 82085644 in words is "eighty-two million, eighty-five thousand, six hundred forty-four".