852489 has 24 divisors (see below), whose sum is σ = 1372800. Its totient is φ = 505440.

The previous prime is 852463. The next prime is 852521. The reversal of 852489 is 984258.

It is not a de Polignac number, because 852489 - 2⁵ = 852457 is a prime.

It is an Ulam number.

It is a Curzon number.

852489 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (852409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7767 + ... + 7875.

It is an arithmetic number, because the mean of its divisors is an integer number (57200).

2⁸⁵²⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

852489 is a deficient number, since it is larger than the sum of its proper divisors (520311).

852489 is a wasteful number, since it uses less digits than its factorization.

852489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 202 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 852489 is about 923.3033087778. The cubic root of 852489 is about 94.8191944256.

Subtracting 852489 from its reverse (984258), we obtain a square (131769 = 363²).

The spelling of 852489 in words is "eight hundred fifty-two thousand, four hundred eighty-nine".