672931965 has 16 divisors (see below), whose sum is σ = 1091857536. Its totient is φ = 353841600.

The previous prime is 672931933. The next prime is 672931967. The reversal of 672931965 is 569139276.

It is not a de Polignac number, because 672931965 - 2⁵ = 672931933 is a prime.

It is a super-2 number, since 2×672931965² = 905674859037522450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672931967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314866 + ... + 316995.

It is an arithmetic number, because the mean of its divisors is an integer number (68241096).

Almost surely, 2^672931965 is an apocalyptic number.

It is an amenable number.

672931965 is a deficient number, since it is larger than the sum of its proper divisors (418925571).

672931965 is a wasteful number, since it uses less digits than its factorization.

672931965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631940.

The product of its digits is 612360, while the sum is 48.

The square root of 672931965 is about 25940.9322307430. The cubic root of 672931965 is about 876.3085574585.

The spelling of 672931965 in words is "six hundred seventy-two million, nine hundred thirty-one thousand, nine hundred sixty-five".