652221976 has 16 divisors (see below), whose sum is σ = 1397618640. Its totient is φ = 279523680.

The previous prime is 652221959. The next prime is 652221991. The reversal of 652221976 is 679122256.

It is a congruent 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, 5823355 + ... + 5823466.

It is an arithmetic number, because the mean of its divisors is an integer number (87351165).

Almost surely, 2^652221976 is an apocalyptic number.

It is an amenable number.

652221976 is an abundant number, since it is smaller than the sum of its proper divisors (745396664).

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

652221976 is a wasteful number, since it uses less digits than its factorization.

652221976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11646834 (or 11646830 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 652221976 is about 25538.6369252550. The cubic root of 652221976 is about 867.2250404381.

Subtracting from 652221976 its product of digits (90720), we obtain a palindrome (652131256).

The spelling of 652221976 in words is "six hundred fifty-two million, two hundred twenty-one thousand, nine hundred seventy-six".