864018 has 24 divisors (see below), whose sum is σ = 1954368. Its totient is φ = 275352.

The previous prime is 864013. The next prime is 864029. The reversal of 864018 is 810468.

864018 is a `hidden beast` number, since 8 + 640 + 18 = 666.

864018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 863982 and 864000.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 864018.

It is not an unprimeable number, because it can be changed into a prime (864011) by changing a digit.

864018 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 11 ways as a sum of consecutive naturals, for example, 630 + ... + 1457.

It is an arithmetic number, because the mean of its divisors is an integer number (81432).

2⁸⁶⁴⁰¹⁸ is an apocalyptic number.

864018 is an abundant number, since it is smaller than the sum of its proper divisors (1090350).

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

864018 is a wasteful number, since it uses less digits than its factorization.

864018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118 (or 2115 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 864018 is about 929.5256854977. The cubic root of 864018 is about 95.2447245306.

The spelling of 864018 in words is "eight hundred sixty-four thousand, eighteen".