673864704 has 88 divisors (see below), whose sum is σ = 1995743120. Its totient is φ = 224612352.

The previous prime is 673864699. The next prime is 673864721. The reversal of 673864704 is 407468376.

It is a self number, because there is not a number n which added to its sum of digits gives 673864704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15462 + ... + 39834.

Almost surely, 2^673864704 is an apocalyptic number.

673864704 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673864704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (997871560).

673864704 is an abundant number, since it is smaller than the sum of its proper divisors (1321878416).

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

673864704 is a wasteful number, since it uses less digits than its factorization.

673864704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24402 (or 24378 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The square root of 673864704 is about 25958.9041371164. The cubic root of 673864704 is about 876.7132490938.

The spelling of 673864704 in words is "six hundred seventy-three million, eight hundred sixty-four thousand, seven hundred four".