6396690 has 16 divisors (see below), whose sum is σ = 15352128. Its totient is φ = 1705776.

The previous prime is 6396683. The next prime is 6396701. The reversal of 6396690 is 966936.

It is a super-2 number, since 2×6396690² = 81835285912200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106582 + ... + 106641.

It is an arithmetic number, because the mean of its divisors is an integer number (959508).

Almost surely, 2^6396690 is an apocalyptic number.

6396690 is an abundant number, since it is smaller than the sum of its proper divisors (8955438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6396690 is a wasteful number, since it uses less digits than its factorization.

6396690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213233.

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 6396690 is about 2529.1678473364. The cubic root of 6396690 is about 185.6315402019.

The spelling of 6396690 in words is "six million, three hundred ninety-six thousand, six hundred ninety".