316549989 has 24 divisors (see below), whose sum is σ = 545281152. Its totient is φ = 173020320.

The previous prime is 316549969. The next prime is 316550011. The reversal of 316549989 is 989945613.

316549989 is a `hidden beast` number, since 3 + 1 + 6 + 549 + 98 + 9 = 666.

It is not a de Polignac number, because 316549989 - 2⁹ = 316549477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316549969) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107782 + ... + 110679.

It is an arithmetic number, because the mean of its divisors is an integer number (22720048).

Almost surely, 2^316549989 is an apocalyptic number.

It is an amenable number.

316549989 is a deficient number, since it is larger than the sum of its proper divisors (228731163).

316549989 is a wasteful number, since it uses less digits than its factorization.

316549989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218497 (or 218494 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The square root of 316549989 is about 17791.8517586001. The cubic root of 316549989 is about 681.5233932968.

The spelling of 316549989 in words is "three hundred sixteen million, five hundred forty-nine thousand, nine hundred eighty-nine".