652864768 has 18 divisors (see below), whose sum is σ = 1303179794. Its totient is φ = 326432256.

The previous prime is 652864747. The next prime is 652864783. The reversal of 652864768 is 867468256.

It can be written as a sum of positive squares in only one way, i.e., 644753664 + 8111104 = 25392^2 + 2848^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1274871 + ... + 1275382.

Almost surely, 2^652864768 is an apocalyptic number.

It is an amenable number.

652864768 is a deficient number, since it is larger than the sum of its proper divisors (650315026).

652864768 is an equidigital number, since it uses as much as digits as its factorization.

652864768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2550269 (or 2550255 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 52.

The square root of 652864768 is about 25551.2185228024. The cubic root of 652864768 is about 867.5098423973.

The spelling of 652864768 in words is "six hundred fifty-two million, eight hundred sixty-four thousand, seven hundred sixty-eight".