6631628 has 12 divisors (see below), whose sum is σ = 11652312. Its totient is φ = 3302400.

The previous prime is 6631619. The next prime is 6631637. The reversal of 6631628 is 8261366.

It is an interprime number because it is at equal distance from previous prime (6631619) and next prime (6631637).

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 6631594 and 6631603.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2198 + ... + 4253.

It is an arithmetic number, because the mean of its divisors is an integer number (971026).

Almost surely, 2^6631628 is an apocalyptic number.

It is an amenable number.

6631628 is a deficient number, since it is larger than the sum of its proper divisors (5020684).

6631628 is a wasteful number, since it uses less digits than its factorization.

6631628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6712 (or 6710 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 6631628 is about 2575.1947499170. The cubic root of 6631628 is about 187.8768999474.

The spelling of 6631628 in words is "six million, six hundred thirty-one thousand, six hundred twenty-eight".