673172885 has 64 divisors (see below), whose sum is σ = 1074622464. Its totient is φ = 391910400.

The previous prime is 673172849. The next prime is 673172887. The reversal of 673172885 is 588271376.

It is a happy number.

It is not a de Polignac number, because 673172885 - 2¹² = 673168789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673172887) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1066520 + ... + 1067150.

It is an arithmetic number, because the mean of its divisors is an integer number (16790976).

Almost surely, 2^673172885 is an apocalyptic number.

It is an amenable number.

673172885 is a deficient number, since it is larger than the sum of its proper divisors (401449579).

673172885 is a wasteful number, since it uses less digits than its factorization.

673172885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834.

The product of its digits is 564480, while the sum is 47.

The square root of 673172885 is about 25945.5754416818. The cubic root of 673172885 is about 876.4131222976.

The spelling of 673172885 in words is "six hundred seventy-three million, one hundred seventy-two thousand, eight hundred eighty-five".