6864345 has 40 divisors (see below), whose sum is σ = 13041864. Its totient is φ = 3442176.

The previous prime is 6864331. The next prime is 6864383. The reversal of 6864345 is 5434686.

6864345 is a `hidden beast` number, since 6 + 8 + 643 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2653641 + 4210704 = 1629^2 + 2052^2 .

It is not a de Polignac number, because 6864345 - 2⁸ = 6864089 is a prime.

6864345 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6387 + ... + 7383.

Almost surely, 2^6864345 is an apocalyptic number.

It is an amenable number.

6864345 is a deficient number, since it is larger than the sum of its proper divisors (6177519).

6864345 is a wasteful number, since it uses less digits than its factorization.

6864345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031 (or 1022 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 6864345 is about 2619.9895037958. The cubic root of 6864345 is about 190.0493408329.

The spelling of 6864345 in words is "six million, eight hundred sixty-four thousand, three hundred forty-five".