8640982 has 16 divisors (see below), whose sum is σ = 14883840. Its totient is φ = 3685608.

The previous prime is 8640977. The next prime is 8641007. The reversal of 8640982 is 2890468.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1819 + ... + 4537.

It is an arithmetic number, because the mean of its divisors is an integer number (930240).

Almost surely, 2^8640982 is an apocalyptic number.

8640982 is a deficient number, since it is larger than the sum of its proper divisors (6242858).

8640982 is a wasteful number, since it uses less digits than its factorization.

8640982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2955.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 8640982 is about 2939.5547281859. The cubic root of 8640982 is about 205.2048873640.

The spelling of 8640982 in words is "eight million, six hundred forty thousand, nine hundred eighty-two".