672920031 has 16 divisors (see below), whose sum is σ = 1060761600. Its totient is φ = 371265888.

The previous prime is 672920023. The next prime is 672920051. The reversal of 672920031 is 130029276.

It is not a de Polignac number, because 672920031 - 2³ = 672920023 is a prime.

It is a super-2 number, since 2×672920031² = 905642736242081922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672920051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 551871 + ... + 553088.

It is an arithmetic number, because the mean of its divisors is an integer number (66297600).

Almost surely, 2^672920031 is an apocalyptic number.

672920031 is a deficient number, since it is larger than the sum of its proper divisors (387841569).

672920031 is a wasteful number, since it uses less digits than its factorization.

672920031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104998.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 672920031 is about 25940.7022071493. The cubic root of 672920031 is about 876.3033771784.

The spelling of 672920031 in words is "six hundred seventy-two million, nine hundred twenty thousand, thirty-one".