672197631 has 24 divisors (see below), whose sum is σ = 1044779904. Its totient is φ = 383307120.

The previous prime is 672197587. The next prime is 672197633. The reversal of 672197631 is 136791276.

It is not a de Polignac number, because 672197631 - 2¹⁴ = 672181247 is a prime.

It is a super-2 number, since 2×672197631² = 903699310244024322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672197633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69396 + ... + 78486.

It is an arithmetic number, because the mean of its divisors is an integer number (43532496).

Almost surely, 2^672197631 is an apocalyptic number.

672197631 is a deficient number, since it is larger than the sum of its proper divisors (372582273).

672197631 is a wasteful number, since it uses less digits than its factorization.

672197631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9611 (or 9604 counting only the distinct ones).

The product of its digits is 95256, while the sum is 42.

The square root of 672197631 is about 25926.7744040789. The cubic root of 672197631 is about 875.9896855085.

The spelling of 672197631 in words is "six hundred seventy-two million, one hundred ninety-seven thousand, six hundred thirty-one".