6628972 has 12 divisors (see below), whose sum is σ = 13258000. Its totient is φ = 2840976.

The previous prime is 6628943. The next prime is 6628981. The reversal of 6628972 is 2798266.

6628972 is an admirable number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 6⁵ + 6⁸ + 2 + 8⁵ + 9⁷ + 7⁶ + 2¹³ .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118347 + ... + 118402.

Almost surely, 2^6628972 is an apocalyptic number.

It is an amenable number.

6628972 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6628972 is a wasteful number, since it uses less digits than its factorization.

6628972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236760 (or 236758 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 6628972 is about 2574.6790091194. The cubic root of 6628972 is about 187.8518147205.

The spelling of 6628972 in words is "six million, six hundred twenty-eight thousand, nine hundred seventy-two".