672317692 has 24 divisors (see below), whose sum is σ = 1231636896. Its totient is φ = 320515008.

The previous prime is 672317671. The next prime is 672317693. The reversal of 672317692 is 296713276.

It is a super-2 number, since 2×672317692² = 904022157952413728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672317693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17638 + ... + 40690.

It is an arithmetic number, because the mean of its divisors is an integer number (51318204).

Almost surely, 2^672317692 is an apocalyptic number.

It is an amenable number.

672317692 is a deficient number, since it is larger than the sum of its proper divisors (559319204).

672317692 is a wasteful number, since it uses less digits than its factorization.

672317692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23397 (or 23395 counting only the distinct ones).

The product of its digits is 190512, while the sum is 43.

The square root of 672317692 is about 25929.0896870677. The cubic root of 672317692 is about 876.0418358146.

The spelling of 672317692 in words is "six hundred seventy-two million, three hundred seventeen thousand, six hundred ninety-two".