864994 has 32 divisors (see below), whose sum is σ = 1572480. Its totient is φ = 352512.

The previous prime is 864989. The next prime is 865001. The reversal of 864994 is 499468.

864994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8347 + ... + 8449.

It is an arithmetic number, because the mean of its divisors is an integer number (49140).

2⁸⁶⁴⁹⁹⁴ is an apocalyptic number.

864994 is a deficient number, since it is larger than the sum of its proper divisors (707486).

864994 is a wasteful number, since it uses less digits than its factorization.

864994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154.

The product of its digits is 62208, while the sum is 40.

The square root of 864994 is about 930.0505362613. The cubic root of 864994 is about 95.2805740425.

The spelling of 864994 in words is "eight hundred sixty-four thousand, nine hundred ninety-four".