664582084 has 12 divisors (see below), whose sum is σ = 1163257900. Its totient is φ = 332222688.

The previous prime is 664582073. The next prime is 664582097. The reversal of 664582084 is 480285466.

It can be written as a sum of positive squares in 2 ways, for example, as 160579584 + 504002500 = 12672^2 + 22450^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 664582084.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9322 + ... + 37630.

Almost surely, 2^664582084 is an apocalyptic number.

It is an amenable number.

664582084 is a deficient number, since it is larger than the sum of its proper divisors (498675816).

664582084 is a wasteful number, since it uses less digits than its factorization.

664582084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34182 (or 34180 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 43.

The square root of 664582084 is about 25779.4895992919. The cubic root of 664582084 is about 872.6689887042.

The spelling of 664582084 in words is "six hundred sixty-four million, five hundred eighty-two thousand, eighty-four".