864874 has 4 divisors (see below), whose sum is σ = 1297314. Its totient is φ = 432436.

The previous prime is 864817. The next prime is 864883. The reversal of 864874 is 478468.

864874 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 can be written as a sum of positive squares in only one way, i.e., 570025 + 294849 = 755^2 + 543^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216217 + ... + 216220.

2⁸⁶⁴⁸⁷⁴ is an apocalyptic number.

864874 is a deficient number, since it is larger than the sum of its proper divisors (432440).

864874 is a wasteful number, since it uses less digits than its factorization.

864874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432439.

The product of its digits is 43008, while the sum is 37.

The square root of 864874 is about 929.9860214003. The cubic root of 864874 is about 95.2761677701.

The spelling of 864874 in words is "eight hundred sixty-four thousand, eight hundred seventy-four".