6628155 has 8 divisors (see below), whose sum is σ = 10605072. Its totient is φ = 3535008.

The previous prime is 6628133. The next prime is 6628159. The reversal of 6628155 is 5518266.

6628155 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6628155 - 2⁵ = 6628123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6628159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220924 + ... + 220953.

It is an arithmetic number, because the mean of its divisors is an integer number (1325634).

Almost surely, 2^6628155 is an apocalyptic number.

6628155 is a deficient number, since it is larger than the sum of its proper divisors (3976917).

6628155 is a wasteful number, since it uses less digits than its factorization.

6628155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441885.

The product of its digits is 14400, while the sum is 33.

The square root of 6628155 is about 2574.5203436757. The cubic root of 6628155 is about 187.8440970212.

The spelling of 6628155 in words is "six million, six hundred twenty-eight thousand, one hundred fifty-five".