653852368 has 40 divisors (see below), whose sum is σ = 1444548168. Its totient is φ = 284024832.

The previous prime is 653852359. The next prime is 653852387. The reversal of 653852368 is 863258356.

It can be written as a sum of positive squares in 4 ways, for example, as 10316944 + 643535424 = 3212^2 + 25368^2 .

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

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, 88921 + ... + 95992.

Almost surely, 2^653852368 is an apocalyptic number.

653852368 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

653852368 is an abundant number, since it is smaller than the sum of its proper divisors (790695800).

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

653852368 is a wasteful number, since it uses less digits than its factorization.

653852368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184951 (or 184945 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 46.

The square root of 653852368 is about 25570.5371081642. The cubic root of 653852368 is about 867.9470544698.

The spelling of 653852368 in words is "six hundred fifty-three million, eight hundred fifty-two thousand, three hundred sixty-eight".