652921764 has 48 divisors (see below), whose sum is σ = 1666862400. Its totient is φ = 197274240.

The previous prime is 652921699. The next prime is 652921799. The reversal of 652921764 is 467129256.

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, 38982 + ... + 53154.

It is an arithmetic number, because the mean of its divisors is an integer number (34726300).

Almost surely, 2^652921764 is an apocalyptic number.

It is an amenable number.

652921764 is an abundant number, since it is smaller than the sum of its proper divisors (1013940636).

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

652921764 is a wasteful number, since it uses less digits than its factorization.

652921764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14540 (or 14538 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 652921764 is about 25552.3338268738. Note that the first 3 decimals coincide. The cubic root of 652921764 is about 867.5350866003.

The spelling of 652921764 in words is "six hundred fifty-two million, nine hundred twenty-one thousand, seven hundred sixty-four".