673713864 has 48 divisors (see below), whose sum is σ = 1825843500. Its totient is φ = 224423424.

The previous prime is 673713863. The next prime is 673713883. The reversal of 673713864 is 468317376.

It can be written as a sum of positive squares in 2 ways, for example, as 673402500 + 311364 = 25950^2 + 558^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (673713863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 193612 + ... + 197060.

Almost surely, 2^673713864 is an apocalyptic number.

It is an amenable number.

673713864 is an abundant number, since it is smaller than the sum of its proper divisors (1152129636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

673713864 is a wasteful number, since it uses less digits than its factorization.

673713864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6174 (or 6167 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 673713864 is about 25955.9986130374. The cubic root of 673713864 is about 876.6478287929.

The spelling of 673713864 in words is "six hundred seventy-three million, seven hundred thirteen thousand, eight hundred sixty-four".