864695 has 16 divisors (see below), whose sum is σ = 1143072. Its totient is φ = 624000.

The previous prime is 864691. The next prime is 864707. The reversal of 864695 is 596468.

It is not a de Polignac number, because 864695 - 2² = 864691 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 864695.

It is not an unprimeable number, because it can be changed into a prime (864691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3320 + ... + 3570.

It is an arithmetic number, because the mean of its divisors is an integer number (71442).

2⁸⁶⁴⁶⁹⁵ is an apocalyptic number.

864695 is a deficient number, since it is larger than the sum of its proper divisors (278377).

864695 is a wasteful number, since it uses less digits than its factorization.

864695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322.

The product of its digits is 51840, while the sum is 38.

The square root of 864695 is about 929.8897784146. The cubic root of 864695 is about 95.2695943229.

The spelling of 864695 in words is "eight hundred sixty-four thousand, six hundred ninety-five".