6864406 has 4 divisors (see below), whose sum is σ = 10296612. Its totient is φ = 3432202.

The previous prime is 6864383. The next prime is 6864427. The reversal of 6864406 is 6044686.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6044686 = 2 ⋅3022343.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1716100 + ... + 1716103.

It is an arithmetic number, because the mean of its divisors is an integer number (2574153).

Almost surely, 2^6864406 is an apocalyptic number.

6864406 is a deficient number, since it is larger than the sum of its proper divisors (3432206).

6864406 is a wasteful number, since it uses less digits than its factorization.

6864406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3432205.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 6864406 is about 2620.0011450379. The cubic root of 6864406 is about 190.0499037891.

The spelling of 6864406 in words is "six million, eight hundred sixty-four thousand, four hundred six".