652685990 has 32 divisors (see below), whose sum is σ = 1305831456. Its totient is φ = 232860160.

The previous prime is 652685951. The next prime is 652685993. The reversal of 652685990 is 99586256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652685993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50147 + ... + 61806.

It is an arithmetic number, because the mean of its divisors is an integer number (40807233).

Almost surely, 2^652685990 is an apocalyptic number.

652685990 is an abundant number, since it is smaller than the sum of its proper divisors (653145466).

652685990 is a wasteful number, since it uses less digits than its factorization.

652685990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112024.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The square root of 652685990 is about 25547.7198591185. The cubic root of 652685990 is about 867.4306499719.

The spelling of 652685990 in words is "six hundred fifty-two million, six hundred eighty-five thousand, nine hundred ninety".