868253 has 4 divisors (see below), whose sum is σ = 881280. Its totient is φ = 855228.

The previous prime is 868249. The next prime is 868267. The reversal of 868253 is 352868.

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 868253 - 2² = 868249 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 (868453) 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, 6413 + ... + 6546.

It is an arithmetic number, because the mean of its divisors is an integer number (220320).

2⁸⁶⁸²⁵³ is an apocalyptic number.

It is an amenable number.

868253 is a deficient number, since it is larger than the sum of its proper divisors (13027).

868253 is a wasteful number, since it uses less digits than its factorization.

868253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13026.

The product of its digits is 11520, while the sum is 32.

The square root of 868253 is about 931.8009444082. The cubic root of 868253 is about 95.4000855568.

The spelling of 868253 in words is "eight hundred sixty-eight thousand, two hundred fifty-three".