6628908 has 48 divisors (see below), whose sum is σ = 18176256. Its totient is φ = 1853760.

The previous prime is 6628879. The next prime is 6628943. The reversal of 6628908 is 8098266.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216 + ... + 3647.

It is an arithmetic number, because the mean of its divisors is an integer number (378672).

Almost surely, 2^6628908 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6628908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9088128).

6628908 is an abundant number, since it is smaller than the sum of its proper divisors (11547348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6628908 is a wasteful number, since it uses less digits than its factorization.

6628908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3894 (or 3892 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 6628908 is about 2574.6665803556. Note that the first 3 decimals coincide. The cubic root of 6628908 is about 187.8512101746.

The spelling of 6628908 in words is "six million, six hundred twenty-eight thousand, nine hundred eight".