868715 has 4 divisors (see below), whose sum is σ = 1042464. Its totient is φ = 694968.

The previous prime is 868697. The next prime is 868727. The reversal of 868715 is 517868.

It is a happy number.

868715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 868715 - 2⁸ = 868459 is a prime.

It is a Duffinian number.

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, 86867 + ... + 86876.

It is an arithmetic number, because the mean of its divisors is an integer number (260616).

2⁸⁶⁸⁷¹⁵ is an apocalyptic number.

868715 is a deficient number, since it is larger than the sum of its proper divisors (173749).

868715 is a wasteful number, since it uses less digits than its factorization.

868715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173748.

The product of its digits is 13440, while the sum is 35.

The square root of 868715 is about 932.0488184639. The cubic root of 868715 is about 95.4170034461.

It can be divided in two parts, 8687 and 15, that multiplied together give a triangular number (130305 = T₅₁₀).

The spelling of 868715 in words is "eight hundred sixty-eight thousand, seven hundred fifteen".