647848746 has 16 divisors (see below), whose sum is σ = 1439664000. Its totient is φ = 215949564.

The previous prime is 647848657. The next prime is 647848753.

647848746 is nontrivially palindromic in base 10.

647848746 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 11997199 = 647848746 / (6 + 4 + 7 + 8 + 4 + 8 + 7 + 4 + 6).

It is a junction number, because it is equal to n+sod(n) for n = 647848692 and 647848701.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5998546 + ... + 5998653.

It is an arithmetic number, because the mean of its divisors is an integer number (89979000).

Almost surely, 2^647848746 is an apocalyptic number.

647848746 is an abundant number, since it is smaller than the sum of its proper divisors (791815254).

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

647848746 is a wasteful number, since it uses less digits than its factorization.

647848746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11997210 (or 11997204 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 54.

The square root of 647848746 is about 25452.8730401894. The cubic root of 647848746 is about 865.2824079278.

The spelling of 647848746 in words is "six hundred forty-seven million, eight hundred forty-eight thousand, seven hundred forty-six".