672836392 has 8 divisors (see below), whose sum is σ = 1261568250. Its totient is φ = 336418192.

The previous prime is 672836389. The next prime is 672836393. The reversal of 672836392 is 293638276.

It can be written as a sum of positive squares in only one way, i.e., 664917796 + 7918596 = 25786^2 + 2814^2 .

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 (672836393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42052267 + ... + 42052282.

Almost surely, 2^672836392 is an apocalyptic number.

It is an amenable number.

672836392 is a deficient number, since it is larger than the sum of its proper divisors (588731858).

672836392 is a wasteful number, since it uses less digits than its factorization.

672836392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84104555 (or 84104551 counting only the distinct ones).

The product of its digits is 653184, while the sum is 46.

The square root of 672836392 is about 25939.0900380102. The cubic root of 672836392 is about 876.2670696572.

The spelling of 672836392 in words is "six hundred seventy-two million, eight hundred thirty-six thousand, three hundred ninety-two".