664074932 has 12 divisors (see below), whose sum is σ = 1199619456. Its totient is φ = 321326520.

The previous prime is 664074919. The next prime is 664074953. The reversal of 664074932 is 239470466.

It is a self number, because there is not a number n which added to its sum of digits gives 664074932.

It is a congruent number.

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, 2677598 + ... + 2677845.

It is an arithmetic number, because the mean of its divisors is an integer number (99968288).

Almost surely, 2^664074932 is an apocalyptic number.

664074932 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

664074932 is a deficient number, since it is larger than the sum of its proper divisors (535544524).

664074932 is a wasteful number, since it uses less digits than its factorization.

664074932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5355478 (or 5355476 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 41.

The square root of 664074932 is about 25769.6513752127. The cubic root of 664074932 is about 872.4469501931.

The spelling of 664074932 in words is "six hundred sixty-four million, seventy-four thousand, nine hundred thirty-two".