673397931 has 16 divisors (see below), whose sum is σ = 972791424. Its totient is φ = 412696704.

The previous prime is 673397929. The next prime is 673397983. The reversal of 673397931 is 139793376.

It is not a de Polignac number, because 673397931 - 2¹ = 673397929 is a prime.

It is a super-2 number, since 2×673397931² = 906929546950161522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (673397731) 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, 151341 + ... + 155726.

It is an arithmetic number, because the mean of its divisors is an integer number (60799464).

Almost surely, 2^673397931 is an apocalyptic number.

673397931 is a deficient number, since it is larger than the sum of its proper divisors (299393493).

673397931 is a wasteful number, since it uses less digits than its factorization.

673397931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307130.

The product of its digits is 642978, while the sum is 48.

The square root of 673397931 is about 25949.9119651686. The cubic root of 673397931 is about 876.5107749201.

The spelling of 673397931 in words is "six hundred seventy-three million, three hundred ninety-seven thousand, nine hundred thirty-one".