6396718 has 4 divisors (see below), whose sum is σ = 9595080. Its totient is φ = 3198358.

The previous prime is 6396707. The next prime is 6396751. The reversal of 6396718 is 8176936.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 1599178 + ... + 1599181.

It is an arithmetic number, because the mean of its divisors is an integer number (2398770).

Almost surely, 2^6396718 is an apocalyptic number.

6396718 is a deficient number, since it is larger than the sum of its proper divisors (3198362).

6396718 is a wasteful number, since it uses less digits than its factorization.

6396718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3198361.

The product of its digits is 54432, while the sum is 40.

The square root of 6396718 is about 2529.1733827478. The cubic root of 6396718 is about 185.6318110543.

The spelling of 6396718 in words is "six million, three hundred ninety-six thousand, seven hundred eighteen".