672520704 has 160 divisors (see below), whose sum is σ = 1876754880. Its totient is φ = 213811200.

The previous prime is 672520679. The next prime is 672520711. The reversal of 672520704 is 407025276.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3715494 + ... + 3715674.

It is an arithmetic number, because the mean of its divisors is an integer number (11729718).

Almost surely, 2^672520704 is an apocalyptic number.

672520704 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 672520704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (938377440).

672520704 is an abundant number, since it is smaller than the sum of its proper divisors (1204234176).

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

672520704 is a wasteful number, since it uses less digits than its factorization.

672520704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 672520704 is about 25933.0041452972. The cubic root of 672520704 is about 876.1300030157.

The spelling of 672520704 in words is "six hundred seventy-two million, five hundred twenty thousand, seven hundred four".