852909 has 16 divisors (see below), whose sum is σ = 1216512. Its totient is φ = 530288.

The previous prime is 852893. The next prime is 852913. The reversal of 852909 is 909258.

852909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 852909 - 2⁴ = 852893 is a prime.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 852909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (852959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3112 + ... + 3374.

It is an arithmetic number, because the mean of its divisors is an integer number (76032).

2⁸⁵²⁹⁰⁹ is an apocalyptic number.

It is an amenable number.

852909 is a deficient number, since it is larger than the sum of its proper divisors (363603).

852909 is a wasteful number, since it uses less digits than its factorization.

852909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 852909 is about 923.5307249897. The cubic root of 852909 is about 94.8347635506.

The spelling of 852909 in words is "eight hundred fifty-two thousand, nine hundred nine".