858253 has 12 divisors (see below), whose sum is σ = 971964. Its totient is φ = 756800.

The previous prime is 858251. The next prime is 858259. The reversal of 858253 is 352858.

It can be written as a sum of positive squares in 2 ways, for example, as 393129 + 465124 = 627^2 + 682^2 .

It is not a de Polignac number, because 858253 - 2¹ = 858251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (858251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4875 + ... + 5047.

It is an arithmetic number, because the mean of its divisors is an integer number (80997).

2⁸⁵⁸²⁵³ is an apocalyptic number.

It is an amenable number.

858253 is a deficient number, since it is larger than the sum of its proper divisors (113711).

858253 is a wasteful number, since it uses less digits than its factorization.

858253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 225 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

The square root of 858253 is about 926.4194514366. The cubic root of 858253 is about 95.0324173763.

It can be divided in two parts, 858 and 253, that added together give a palindrome (1111).

The spelling of 858253 in words is "eight hundred fifty-eight thousand, two hundred fifty-three".