652857 has 4 divisors (see below), whose sum is σ = 870480. Its totient is φ = 435236.

The previous prime is 652853. The next prime is 652871. The reversal of 652857 is 758256.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 652857 - 2² = 652853 is a prime.

It is a d-powerful number, because it can be written as 6 + 5² + 8 + 2¹⁸ + 5⁸ + 7² .

It is a D-number.

652857 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (652853) 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, 108807 + ... + 108812.

It is an arithmetic number, because the mean of its divisors is an integer number (217620).

2⁶⁵²⁸⁵⁷ is an apocalyptic number.

It is an amenable number.

652857 is a deficient number, since it is larger than the sum of its proper divisors (217623).

652857 is a wasteful number, since it uses less digits than its factorization.

652857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217622.

The product of its digits is 16800, while the sum is 33.

The square root of 652857 is about 807.9956683052. The cubic root of 652857 is about 86.7506401744.

The spelling of 652857 in words is "six hundred fifty-two thousand, eight hundred fifty-seven".