6626988 has 48 divisors (see below), whose sum is σ = 17592960. Its totient is φ = 2156112.

The previous prime is 6626981. The next prime is 6626989. The reversal of 6626988 is 8896266.

It is not an unprimeable number, because it can be changed into a prime (6626981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3931 + ... + 5357.

It is an arithmetic number, because the mean of its divisors is an integer number (366520).

Almost surely, 2^6626988 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 6626988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8796480).

6626988 is an abundant number, since it is smaller than the sum of its proper divisors (10965972).

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

6626988 is a wasteful number, since it uses less digits than its factorization.

6626988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483 (or 1475 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 6626988 is about 2574.2936895389. The cubic root of 6626988 is about 187.8330719859.

The spelling of 6626988 in words is "six million, six hundred twenty-six thousand, nine hundred eighty-eight".