6646662 has 24 divisors (see below), whose sum is σ = 15710760. Its totient is φ = 2014080.

The previous prime is 6646657. The next prime is 6646663. The reversal of 6646662 is 2666466.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6646663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16587 + ... + 16982.

It is an arithmetic number, because the mean of its divisors is an integer number (654615).

Almost surely, 2^6646662 is an apocalyptic number.

6646662 is an abundant number, since it is smaller than the sum of its proper divisors (9064098).

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

6646662 is a wasteful number, since it uses less digits than its factorization.

6646662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33588 (or 33585 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 6646662 is about 2578.1120999677. The cubic root of 6646662 is about 188.0187660458.

The spelling of 6646662 in words is "six million, six hundred forty-six thousand, six hundred sixty-two".