652979 has 4 divisors (see below), whose sum is σ = 655200. Its totient is φ = 650760.

The previous prime is 652969. The next prime is 652991. The reversal of 652979 is 979256.

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 652979 - 2⁸ = 652723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (652909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587 + ... + 1284.

It is an arithmetic number, because the mean of its divisors is an integer number (163800).

2⁶⁵²⁹⁷⁹ is an apocalyptic number.

652979 is a deficient number, since it is larger than the sum of its proper divisors (2221).

652979 is a wasteful number, since it uses less digits than its factorization.

652979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220.

The product of its digits is 34020, while the sum is 38.

The square root of 652979 is about 808.0711602328. The cubic root of 652979 is about 86.7560435624.

The spelling of 652979 in words is "six hundred fifty-two thousand, nine hundred seventy-nine".