864080 has 40 divisors (see below), whose sum is σ = 2297472. Its totient is φ = 296064.

The previous prime is 864079. The next prime is 864091. The reversal of 864080 is 80468.

864080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

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 864080.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212 + ... + 1331.

2⁸⁶⁴⁰⁸⁰ is an apocalyptic number.

864080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

864080 is an abundant number, since it is smaller than the sum of its proper divisors (1433392).

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

864080 is a wasteful number, since it uses less digits than its factorization.

864080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563 (or 1557 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 864080 is about 929.5590352420. The cubic root of 864080 is about 95.2470026589.

The spelling of 864080 in words is "eight hundred sixty-four thousand, eighty".