852569 has 2 divisors, whose sum is σ = 852570. Its totient is φ = 852568.

The previous prime is 852563. The next prime is 852581. The reversal of 852569 is 965258.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 582169 + 270400 = 763^2 + 520^2 .

It is a cyclic number.

It is not a de Polignac number, because 852569 - 2¹² = 848473 is a prime.

It is a super-2 number, since 2×852569² = 1453747799522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (852563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426284 + 426285.

It is an arithmetic number, because the mean of its divisors is an integer number (426285).

2⁸⁵²⁵⁶⁹ is an apocalyptic number.

It is an amenable number.

852569 is a deficient number, since it is larger than the sum of its proper divisors (1).

852569 is an equidigital number, since it uses as much as digits as its factorization.

852569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 35.

The square root of 852569 is about 923.3466304698. The cubic root of 852569 is about 94.8221603674.

The spelling of 852569 in words is "eight hundred fifty-two thousand, five hundred sixty-nine".