6655172 has 6 divisors (see below), whose sum is σ = 11646558. Its totient is φ = 3327584.

The previous prime is 6655169. The next prime is 6655199. The reversal of 6655172 is 2715566.

It is a happy number.

6655172 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6482116 + 173056 = 2546^2 + 416^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 831893 + ... + 831900.

It is an arithmetic number, because the mean of its divisors is an integer number (1941093).

Almost surely, 2^6655172 is an apocalyptic number.

It is an amenable number.

6655172 is a deficient number, since it is larger than the sum of its proper divisors (4991386).

6655172 is a wasteful number, since it uses less digits than its factorization.

6655172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1663797 (or 1663795 counting only the distinct ones).

The product of its digits is 12600, while the sum is 32.

The square root of 6655172 is about 2579.7620045268. The cubic root of 6655172 is about 188.0989745935.

The spelling of 6655172 in words is "six million, six hundred fifty-five thousand, one hundred seventy-two".