316644913 has 4 divisors (see below), whose sum is σ = 341002228. Its totient is φ = 292287600.

The previous prime is 316644901. The next prime is 316644959. The reversal of 316644913 is 319446613.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22591009 + 294053904 = 4753^2 + 17148^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316644913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316644413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12178638 + ... + 12178663.

It is an arithmetic number, because the mean of its divisors is an integer number (85250557).

Almost surely, 2^316644913 is an apocalyptic number.

It is an amenable number.

316644913 is a deficient number, since it is larger than the sum of its proper divisors (24357315).

316644913 is a wasteful number, since it uses less digits than its factorization.

316644913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24357314.

The product of its digits is 46656, while the sum is 37.

The square root of 316644913 is about 17794.5191842882. The cubic root of 316644913 is about 681.5915094063.

The spelling of 316644913 in words is "three hundred sixteen million, six hundred forty-four thousand, nine hundred thirteen".