646285117 has 8 divisors (see below), whose sum is σ = 670079232. Its totient is φ = 622675200.

The previous prime is 646285067. The next prime is 646285147. The reversal of 646285117 is 711582646.

646285117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 646285117 - 2²⁷ = 512067389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 646285117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646285147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38884 + ... + 52957.

It is an arithmetic number, because the mean of its divisors is an integer number (83759904).

Almost surely, 2^646285117 is an apocalyptic number.

It is an amenable number.

646285117 is a deficient number, since it is larger than the sum of its proper divisors (23794115).

646285117 is a wasteful number, since it uses less digits than its factorization.

646285117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92099.

The product of its digits is 80640, while the sum is 40.

The square root of 646285117 is about 25422.1383246964. The cubic root of 646285117 is about 864.5857069146.

The spelling of 646285117 in words is "six hundred forty-six million, two hundred eighty-five thousand, one hundred seventeen".