672757988 has 24 divisors (see below), whose sum is σ = 1365602112. Its totient is φ = 284020704.

The previous prime is 672757951. The next prime is 672758003. The reversal of 672757988 is 889757276.

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, 177431 + ... + 181182.

It is an arithmetic number, because the mean of its divisors is an integer number (56900088).

Almost surely, 2^672757988 is an apocalyptic number.

It is an amenable number.

672757988 is an abundant number, since it is smaller than the sum of its proper divisors (692844124).

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

672757988 is a wasteful number, since it uses less digits than its factorization.

672757988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358691 (or 358689 counting only the distinct ones).

The product of its digits is 11854080, while the sum is 59.

The square root of 672757988 is about 25937.5786842180. The cubic root of 672757988 is about 876.2330319065.

The spelling of 672757988 in words is "six hundred seventy-two million, seven hundred fifty-seven thousand, nine hundred eighty-eight".