6659472 has 20 divisors (see below), whose sum is σ = 17203760. Its totient is φ = 2219808.

The previous prime is 6659447. The next prime is 6659491. The reversal of 6659472 is 2749566.

It is a self number, because there is not a number n which added to its sum of digits gives 6659472.

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, 69322 + ... + 69417.

It is an arithmetic number, because the mean of its divisors is an integer number (860188).

Almost surely, 2^6659472 is an apocalyptic number.

It is an amenable number.

6659472 is an abundant number, since it is smaller than the sum of its proper divisors (10544288).

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

6659472 is a wasteful number, since it uses less digits than its factorization.

6659472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138750 (or 138744 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 6659472 is about 2580.5952801631. The cubic root of 6659472 is about 188.1394770006.

It can be divided in two parts, 66594 and 72, that added together give a palindrome (66666).

The spelling of 6659472 in words is "six million, six hundred fifty-nine thousand, four hundred seventy-two".