6864165 has 72 divisors (see below), whose sum is σ = 15151968. Its totient is φ = 2842560.

The previous prime is 6864139. The next prime is 6864167. The reversal of 6864165 is 5614686.

6864165 is a `hidden beast` number, since 6 + 8 + 641 + 6 + 5 = 666.

6864165 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6864165 - 2⁶ = 6864101 is a prime.

It is a super-2 number, since 2×6864165² = 94233522294450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6864167) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 24114 + ... + 24396.

It is an arithmetic number, because the mean of its divisors is an integer number (210444).

Almost surely, 2^6864165 is an apocalyptic number.

It is an amenable number.

6864165 is an abundant number, since it is smaller than the sum of its proper divisors (8287803).

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

6864165 is a wasteful number, since it uses less digits than its factorization.

6864165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 309 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 6864165 is about 2619.9551522879. The cubic root of 6864165 is about 190.0476796314.

It can be divided in two parts, 686 and 4165, that added together give a triangular number (4851 = T₉₈).

The spelling of 6864165 in words is "six million, eight hundred sixty-four thousand, one hundred sixty-five".