864056 has 8 divisors (see below), whose sum is σ = 1620120. Its totient is φ = 432024.

The previous prime is 864053. The next prime is 864077. The reversal of 864056 is 650468.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×864056² = 1493185542272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53996 + ... + 54011.

It is an arithmetic number, because the mean of its divisors is an integer number (202515).

2⁸⁶⁴⁰⁵⁶ is an apocalyptic number.

It is an amenable number.

864056 is a deficient number, since it is larger than the sum of its proper divisors (756064).

864056 is a wasteful number, since it uses less digits than its factorization.

864056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108013 (or 108009 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 864056 is about 929.5461258055. The cubic root of 864056 is about 95.2461208157.

The spelling of 864056 in words is "eight hundred sixty-four thousand, fifty-six".