6642772 has 12 divisors (see below), whose sum is σ = 11652480. Its totient is φ = 3313496.

The previous prime is 6642763. The next prime is 6642793. The reversal of 6642772 is 2772466.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183 + ... + 3649.

It is an arithmetic number, because the mean of its divisors is an integer number (971040).

Almost surely, 2^6642772 is an apocalyptic number.

It is an amenable number.

6642772 is a deficient number, since it is larger than the sum of its proper divisors (5009708).

6642772 is a wasteful number, since it uses less digits than its factorization.

6642772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3950 (or 3948 counting only the distinct ones).

The product of its digits is 28224, while the sum is 34.

The square root of 6642772 is about 2577.3575615347. The cubic root of 6642772 is about 187.9820791730.

The spelling of 6642772 in words is "six million, six hundred forty-two thousand, seven hundred seventy-two".