672971 has 4 divisors (see below), whose sum is σ = 724752. Its totient is φ = 621192.

The previous prime is 672967. The next prime is 672977. The reversal of 672971 is 179276.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 672971 - 2² = 672967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25871 + ... + 25896.

It is an arithmetic number, because the mean of its divisors is an integer number (181188).

2⁶⁷²⁹⁷¹ is an apocalyptic number.

672971 is a deficient number, since it is larger than the sum of its proper divisors (51781).

672971 is a wasteful number, since it uses less digits than its factorization.

672971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51780.

The product of its digits is 5292, while the sum is 32.

The square root of 672971 is about 820.3480968467. The cubic root of 672971 is about 87.6325501243.

The spelling of 672971 in words is "six hundred seventy-two thousand, nine hundred seventy-one".