864246 has 32 divisors (see below), whose sum is σ = 1887840. Its totient is φ = 262656.

The previous prime is 864223. The next prime is 864251. The reversal of 864246 is 642468.

It is a super-2 number, since 2×864246² = 1493842297032, which contains 22 as substring.

Its product of digits (9216) is a multiple of the sum of its prime divisors (288).

It is a congruent number.

It is an unprimeable number.

864246 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3660 + ... + 3888.

It is an arithmetic number, because the mean of its divisors is an integer number (58995).

2⁸⁶⁴²⁴⁶ is an apocalyptic number.

864246 is an abundant number, since it is smaller than the sum of its proper divisors (1023594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

864246 is a wasteful number, since it uses less digits than its factorization.

864246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288.

The product of its digits is 9216, while the sum is 30.

The square root of 864246 is about 929.6483206030. The cubic root of 864246 is about 95.2531016274.

The spelling of 864246 in words is "eight hundred sixty-four thousand, two hundred forty-six".