647353116 has 18 divisors (see below), whose sum is σ = 1636364912. Its totient is φ = 215784360.

The previous prime is 647353093. The next prime is 647353117. The reversal of 647353116 is 611353746.

647353116 is a `hidden beast` number, since 647 + 3 + 5 + 3 + 1 + 1 + 6 = 666.

647353116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 17982031 = 647353116 / (6 + 4 + 7 + 3 + 5 + 3 + 1 + 1 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647353117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8990980 + ... + 8991051.

Almost surely, 2^647353116 is an apocalyptic number.

It is an amenable number.

647353116 is an abundant number, since it is smaller than the sum of its proper divisors (989011796).

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

647353116 is a wasteful number, since it uses less digits than its factorization.

647353116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17982041 (or 17982036 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 647353116 is about 25443.1349483510. The cubic root of 647353116 is about 865.0616931730.

The spelling of 647353116 in words is "six hundred forty-seven million, three hundred fifty-three thousand, one hundred sixteen".