672930056 has 8 divisors (see below), whose sum is σ = 1261743870. Its totient is φ = 336465024.

The previous prime is 672930047. The next prime is 672930059. The reversal of 672930056 is 650039276.

It can be written as a sum of positive squares in only one way, i.e., 618317956 + 54612100 = 24866^2 + 7390^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (672930059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42058121 + ... + 42058136.

Almost surely, 2^672930056 is an apocalyptic number.

It is an amenable number.

672930056 is a deficient number, since it is larger than the sum of its proper divisors (588813814).

672930056 is a wasteful number, since it uses less digits than its factorization.

672930056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84116263 (or 84116259 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 672930056 is about 25940.8954355859. The cubic root of 672930056 is about 876.3077288088.

The spelling of 672930056 in words is "six hundred seventy-two million, nine hundred thirty thousand, fifty-six".