6816606 has 16 divisors (see below), whose sum is σ = 13716864. Its totient is φ = 2258264.

The previous prime is 6816587. The next prime is 6816613. The reversal of 6816606 is 6066186.

It is a super-2 number, since 2×6816606² = 92932234718472, which contains 22 as substring.

It is a congruent number.

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, 2400 + ... + 4403.

It is an arithmetic number, because the mean of its divisors is an integer number (857304).

Almost surely, 2^6816606 is an apocalyptic number.

6816606 is an abundant number, since it is smaller than the sum of its proper divisors (6900258).

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

6816606 is a wasteful number, since it uses less digits than its factorization.

6816606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6975.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 6816606 is about 2610.8630756897. The cubic root of 6816606 is about 189.6077410537.

The spelling of 6816606 in words is "six million, eight hundred sixteen thousand, six hundred six".