868355 has 4 divisors (see below), whose sum is σ = 1042032. Its totient is φ = 694680.

The previous prime is 868349. The next prime is 868369. The reversal of 868355 is 553868.

868355 is an esthetic number in base 11, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 868355 - 2⁶ = 868291 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86831 + ... + 86840.

It is an arithmetic number, because the mean of its divisors is an integer number (260508).

2⁸⁶⁸³⁵⁵ is an apocalyptic number.

868355 is a deficient number, since it is larger than the sum of its proper divisors (173677).

868355 is a wasteful number, since it uses less digits than its factorization.

868355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173676.

The product of its digits is 28800, while the sum is 35.

The square root of 868355 is about 931.8556755206. The cubic root of 868355 is about 95.4038211913.

The spelling of 868355 in words is "eight hundred sixty-eight thousand, three hundred fifty-five".