868351 has 4 divisors (see below), whose sum is σ = 947304. Its totient is φ = 789400.

The previous prime is 868349. The next prime is 868369. The reversal of 868351 is 153868.

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

It is a cyclic number.

It is not a de Polignac number, because 868351 - 2¹ = 868349 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39460 + ... + 39481.

It is an arithmetic number, because the mean of its divisors is an integer number (236826).

2⁸⁶⁸³⁵¹ is an apocalyptic number.

868351 is a deficient number, since it is larger than the sum of its proper divisors (78953).

868351 is a wasteful number, since it uses less digits than its factorization.

868351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78952.

The product of its digits is 5760, while the sum is 31.

The square root of 868351 is about 931.8535292630. The cubic root of 868351 is about 95.4036747014.

The spelling of 868351 in words is "eight hundred sixty-eight thousand, three hundred fifty-one".