316491439 has 4 divisors (see below), whose sum is σ = 345263400. Its totient is φ = 287719480.

The previous prime is 316491403. The next prime is 316491443. The reversal of 316491439 is 934194613.

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

It is a cyclic number.

It is not a de Polignac number, because 316491439 - 2⁷ = 316491311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316491449) 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, 14385964 + ... + 14385985.

It is an arithmetic number, because the mean of its divisors is an integer number (86315850).

Almost surely, 2^316491439 is an apocalyptic number.

316491439 is a deficient number, since it is larger than the sum of its proper divisors (28771961).

316491439 is a wasteful number, since it uses less digits than its factorization.

316491439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28771960.

The product of its digits is 69984, while the sum is 40.

The square root of 316491439 is about 17790.2062663703. The cubic root of 316491439 is about 681.4813718609.

The spelling of 316491439 in words is "three hundred sixteen million, four hundred ninety-one thousand, four hundred thirty-nine".