8647472 has 20 divisors (see below), whose sum is σ = 17145480. Its totient is φ = 4222848.

The previous prime is 8647469. The next prime is 8647501. The reversal of 8647472 is 2747468.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

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, 5597 + ... + 6972.

It is an arithmetic number, because the mean of its divisors is an integer number (857274).

Almost surely, 2^8647472 is an apocalyptic number.

It is an amenable number.

8647472 is a deficient number, since it is larger than the sum of its proper divisors (8498008).

8647472 is a wasteful number, since it uses less digits than its factorization.

8647472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12620 (or 12614 counting only the distinct ones).

The product of its digits is 75264, while the sum is 38.

The square root of 8647472 is about 2940.6584296718. The cubic root of 8647472 is about 205.2562490587.

It can be divided in two parts, 8647 and 472, that added together give a palindrome (9119).

The spelling of 8647472 in words is "eight million, six hundred forty-seven thousand, four hundred seventy-two".