6864885 has 32 divisors (see below), whose sum is σ = 12312960. Its totient is φ = 3628800.

The previous prime is 6864881. The next prime is 6864911. The reversal of 6864885 is 5884686.

It is not a de Polignac number, because 6864885 - 2² = 6864881 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

6864885 is an undulating number in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 6864885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6864881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28365 + ... + 28605.

It is an arithmetic number, because the mean of its divisors is an integer number (384780).

Almost surely, 2^6864885 is an apocalyptic number.

It is an amenable number.

6864885 is a deficient number, since it is larger than the sum of its proper divisors (5448075).

6864885 is a wasteful number, since it uses less digits than its factorization.

6864885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 460 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 6864885 is about 2620.0925556171. The cubic root of 6864885 is about 190.0543242631.

The spelling of 6864885 in words is "six million, eight hundred sixty-four thousand, eight hundred eighty-five".