672990706 has 8 divisors (see below), whose sum is σ = 1036769580. Its totient is φ = 327400848.

The previous prime is 672990691. The next prime is 672990707. The reversal of 672990706 is 607099276.

It can be written as a sum of positive squares in 2 ways, for example, as 672935481 + 55225 = 25941^2 + 235^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (672990707) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4547161 + ... + 4547308.

Almost surely, 2^672990706 is an apocalyptic number.

672990706 is a deficient number, since it is larger than the sum of its proper divisors (363778874).

672990706 is a wasteful number, since it uses less digits than its factorization.

672990706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9094508.

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 672990706 is about 25942.0644128412. The cubic root of 672990706 is about 876.3340547083.

The spelling of 672990706 in words is "six hundred seventy-two million, nine hundred ninety thousand, seven hundred six".