6636912 has 60 divisors (see below), whose sum is σ = 17795736. Its totient is φ = 2131200.

The previous prime is 6636887. The next prime is 6636913. The reversal of 6636912 is 2196366.

It is a happy number.

It is a Smith number, since the sum of its digits (33) 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 (6636913) 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, 65662 + ... + 65762.

Almost surely, 2^6636912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6636912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8897868).

6636912 is an abundant number, since it is smaller than the sum of its proper divisors (11158824).

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

6636912 is a wasteful number, since it uses less digits than its factorization.

6636912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 143 counting only the distinct ones).

The product of its digits is 11664, while the sum is 33.

The square root of 6636912 is about 2576.2204874583. The cubic root of 6636912 is about 187.9267860381.

The spelling of 6636912 in words is "six million, six hundred thirty-six thousand, nine hundred twelve".