652500879 has 4 divisors (see below), whose sum is σ = 870001176. Its totient is φ = 435000584.

The previous prime is 652500857. The next prime is 652500881. The reversal of 652500879 is 978005256.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 652500879 - 2⁵ = 652500847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 652500879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652500829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108750144 + ... + 108750149.

It is an arithmetic number, because the mean of its divisors is an integer number (217500294).

Almost surely, 2^652500879 is an apocalyptic number.

652500879 is a deficient number, since it is larger than the sum of its proper divisors (217500297).

652500879 is a wasteful number, since it uses less digits than its factorization.

652500879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217500296.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 652500879 is about 25544.0967544362. The cubic root of 652500879 is about 867.3486370081.

The spelling of 652500879 in words is "six hundred fifty-two million, five hundred thousand, eight hundred seventy-nine".