647711883 has 96 divisors (see below), whose sum is σ = 1265112576. Its totient is φ = 321366528.

The previous prime is 647711879. The next prime is 647711893. The reversal of 647711883 is 388117746.

647711883 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 647711883 - 2² = 647711879 is a prime.

It is not an unprimeable number, because it can be changed into a prime (647711803) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 375060 + ... + 376782.

It is an arithmetic number, because the mean of its divisors is an integer number (13178256).

Almost surely, 2^647711883 is an apocalyptic number.

647711883 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

647711883 is a deficient number, since it is larger than the sum of its proper divisors (617400693).

647711883 is a wasteful number, since it uses less digits than its factorization.

647711883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775 (or 1763 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 647711883 is about 25450.1843411791. The cubic root of 647711883 is about 865.2214711287.

The spelling of 647711883 in words is "six hundred forty-seven million, seven hundred eleven thousand, eight hundred eighty-three".