864675 has 60 divisors (see below), whose sum is σ = 1860496. Its totient is φ = 388800.

The previous prime is 864673. The next prime is 864679. The reversal of 864675 is 576468.

It is a happy number.

864675 is a `hidden beast` number, since 8 + 646 + 7 + 5 = 666.

864675 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 864675 - 2¹ = 864673 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

Its product of digits (40320) is a multiple of the sum of its prime factors (90).

It is not an unprimeable number, because it can be changed into a prime (864673) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 14145 + ... + 14205.

2⁸⁶⁴⁶⁷⁵ is an apocalyptic number.

864675 is an abundant number, since it is smaller than the sum of its proper divisors (995821).

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

864675 is a wasteful number, since it uses less digits than its factorization.

864675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90 (or 76 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 864675 is about 929.8790243897. The cubic root of 864675 is about 95.2688598032.

It can be divided in two parts, 86 and 4675, that added together give a square (4761 = 69²).

The spelling of 864675 in words is "eight hundred sixty-four thousand, six hundred seventy-five".