673679431 has 8 divisors (see below), whose sum is σ = 683764640. Its totient is φ = 663662592.

The previous prime is 673679411. The next prime is 673679437. The reversal of 673679431 is 134976376.

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 673679431 - 2⁵ = 673679399 is a prime.

It is a super-2 number, since 2×673679431² = 907687951504967522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673679437) 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, 2935 + ... + 36823.

It is an arithmetic number, because the mean of its divisors is an integer number (85470580).

Almost surely, 2^673679431 is an apocalyptic number.

673679431 is a deficient number, since it is larger than the sum of its proper divisors (10085209).

673679431 is a wasteful number, since it uses less digits than its factorization.

673679431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34185.

The product of its digits is 571536, while the sum is 46.

The square root of 673679431 is about 25955.3353089495. The cubic root of 673679431 is about 876.6328936053.

The spelling of 673679431 in words is "six hundred seventy-three million, six hundred seventy-nine thousand, four hundred thirty-one".