6631028 has 12 divisors (see below), whose sum is σ = 11763780. Its totient is φ = 3269952.

The previous prime is 6631021. The next prime is 6631033. The reversal of 6631028 is 8201366.

It can be written as a sum of positive squares in 2 ways, for example, as 1304164 + 5326864 = 1142^2 + 2308^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6630988 and 6631006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6631021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11063 + ... + 11646.

It is an arithmetic number, because the mean of its divisors is an integer number (980315).

Almost surely, 2^6631028 is an apocalyptic number.

It is an amenable number.

6631028 is a deficient number, since it is larger than the sum of its proper divisors (5132752).

6631028 is a wasteful number, since it uses less digits than its factorization.

6631028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22786 (or 22784 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 6631028 is about 2575.0782512382. The cubic root of 6631028 is about 187.8712336897.

The spelling of 6631028 in words is "six million, six hundred thirty-one thousand, twenty-eight".