672990564 has 48 divisors (see below), whose sum is σ = 1693298880. Its totient is φ = 207336960.

The previous prime is 672990547. The next prime is 672990581. The reversal of 672990564 is 465099276.

It is an interprime number because it is at equal distance from previous prime (672990547) and next prime (672990581).

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 15 ways as a sum of consecutive naturals, for example, 26649 + ... + 45344.

It is an arithmetic number, because the mean of its divisors is an integer number (35277060).

Almost surely, 2^672990564 is an apocalyptic number.

It is an amenable number.

672990564 is an abundant number, since it is smaller than the sum of its proper divisors (1020308316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

672990564 is a wasteful number, since it uses less digits than its factorization.

672990564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72060 (or 72058 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 48.

The square root of 672990564 is about 25942.0616759732. The cubic root of 672990564 is about 876.3339930732. Note that the first 3 decimals are identical.

The spelling of 672990564 in words is "six hundred seventy-two million, nine hundred ninety thousand, five hundred sixty-four".