6864395 has 4 divisors (see below), whose sum is σ = 8237280. Its totient is φ = 5491512.

The previous prime is 6864383. The next prime is 6864427. The reversal of 6864395 is 5934686.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5934686 = 2 ⋅2967343.

It is a cyclic number.

It is not a de Polignac number, because 6864395 - 2⁶ = 6864331 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 686435 + ... + 686444.

It is an arithmetic number, because the mean of its divisors is an integer number (2059320).

Almost surely, 2^6864395 is an apocalyptic number.

6864395 is a deficient number, since it is larger than the sum of its proper divisors (1372885).

6864395 is a wasteful number, since it uses less digits than its factorization.

6864395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372884.

The product of its digits is 155520, while the sum is 41.

The square root of 6864395 is about 2619.9990458014. Note that the first 3 decimals coincide. The cubic root of 6864395 is about 190.0498022726.

The spelling of 6864395 in words is "six million, eight hundred sixty-four thousand, three hundred ninety-five".