672931 has 8 divisors (see below), whose sum is σ = 774144. Its totient is φ = 573000.

The previous prime is 672913. The next prime is 672937. The reversal of 672931 is 139276.

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 672931 - 2⁷ = 672803 is a prime.

It is a super-2 number, since 2×672931² = 905672261522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 672931.

It is not an unprimeable number, because it can be changed into a prime (672937) 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, 1566 + ... + 1948.

It is an arithmetic number, because the mean of its divisors is an integer number (96768).

2⁶⁷²⁹³¹ is an apocalyptic number.

672931 is a deficient number, since it is larger than the sum of its proper divisors (101213).

672931 is a wasteful number, since it uses less digits than its factorization.

672931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641.

The product of its digits is 2268, while the sum is 28.

The square root of 672931 is about 820.3237165900. The cubic root of 672931 is about 87.6308138576.

The spelling of 672931 in words is "six hundred seventy-two thousand, nine hundred thirty-one".