6636772 has 12 divisors (see below), whose sum is σ = 11665836. Its totient is φ = 3303680.

The previous prime is 6636769. The next prime is 6636779. The reversal of 6636772 is 2776366.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 614656 + 6022116 = 784^2 + 2454^2 .

It is not an unprimeable number, because it can be changed into a prime (6636779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2629 + ... + 4492.

It is an arithmetic number, because the mean of its divisors is an integer number (972153).

Almost surely, 2^6636772 is an apocalyptic number.

It is an amenable number.

6636772 is a deficient number, since it is larger than the sum of its proper divisors (5029064).

6636772 is a wasteful number, since it uses less digits than its factorization.

6636772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7358 (or 7356 counting only the distinct ones).

The product of its digits is 63504, while the sum is 37.

The square root of 6636772 is about 2576.1933157277. The cubic root of 6636772 is about 187.9254646437.

The spelling of 6636772 in words is "six million, six hundred thirty-six thousand, seven hundred seventy-two".