672685307 has 8 divisors (see below), whose sum is σ = 768952800. Its totient is φ = 576460224.

The previous prime is 672685303. The next prime is 672685309. The reversal of 672685307 is 703586276.

672685307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 672685307 - 2² = 672685303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (672685303) 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, 38669 + ... + 53297.

It is an arithmetic number, because the mean of its divisors is an integer number (96119100).

Almost surely, 2^672685307 is an apocalyptic number.

672685307 is a deficient number, since it is larger than the sum of its proper divisors (96267493).

672685307 is a wasteful number, since it uses less digits than its factorization.

672685307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21205.

The product of its (nonzero) digits is 423360, while the sum is 44.

The square root of 672685307 is about 25936.1775711071. The cubic root of 672685307 is about 876.2014763359.

The spelling of 672685307 in words is "six hundred seventy-two million, six hundred eighty-five thousand, three hundred seven".