653688364 has 12 divisors (see below), whose sum is σ = 1307376784. Its totient is φ = 280152144.

The previous prime is 653688349. The next prime is 653688377. The reversal of 653688364 is 463886356.

653688364 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11672979 + ... + 11673034.

Almost surely, 2^653688364 is an apocalyptic number.

It is an amenable number.

653688364 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

653688364 is a wasteful number, since it uses less digits than its factorization.

653688364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23346024 (or 23346022 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 49.

The square root of 653688364 is about 25567.3300131242. The cubic root of 653688364 is about 867.8744801402.

The spelling of 653688364 in words is "six hundred fifty-three million, six hundred eighty-eight thousand, three hundred sixty-four".