652889 has 4 divisors (see below), whose sum is σ = 655524. Its totient is φ = 650256.

The previous prime is 652871. The next prime is 652903. The reversal of 652889 is 988256.

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

It can be written as a sum of positive squares in 2 ways, for example, as 115600 + 537289 = 340^2 + 733^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-652889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (652849) 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, 902 + ... + 1455.

It is an arithmetic number, because the mean of its divisors is an integer number (163881).

2⁶⁵²⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

652889 is a deficient number, since it is larger than the sum of its proper divisors (2635).

652889 is a wasteful number, since it uses less digits than its factorization.

652889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634.

The product of its digits is 34560, while the sum is 38.

The square root of 652889 is about 808.0154701489. The cubic root of 652889 is about 86.7520575216.

The spelling of 652889 in words is "six hundred fifty-two thousand, eight hundred eighty-nine".