6628775 has 6 divisors (see below), whose sum is σ = 8219712. Its totient is φ = 5303000.

The previous prime is 6628753. The next prime is 6628781. The reversal of 6628775 is 5778266.

It is a happy number.

It is not a de Polignac number, because 6628775 - 2⁶ = 6628711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 132551 + ... + 132600.

It is an arithmetic number, because the mean of its divisors is an integer number (1369952).

Almost surely, 2^6628775 is an apocalyptic number.

6628775 is a deficient number, since it is larger than the sum of its proper divisors (1590937).

6628775 is a wasteful number, since it uses less digits than its factorization.

6628775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265161 (or 265156 counting only the distinct ones).

The product of its digits is 141120, while the sum is 41.

The square root of 6628775 is about 2574.6407516390. The cubic root of 6628775 is about 187.8499538400.

The spelling of 6628775 in words is "six million, six hundred twenty-eight thousand, seven hundred seventy-five".