319484887 has 2 divisors, whose sum is σ = 319484888. Its totient is φ = 319484886.

The previous prime is 319484849. The next prime is 319484903. The reversal of 319484887 is 788484913.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-319484887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (319484807) 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 as a sum of consecutive naturals, namely, 159742443 + 159742444.

It is an arithmetic number, because the mean of its divisors is an integer number (159742444).

Almost surely, 2^319484887 is an apocalyptic number.

319484887 is a deficient number, since it is larger than the sum of its proper divisors (1).

319484887 is an equidigital number, since it uses as much as digits as its factorization.

319484887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1548288, while the sum is 52.

The square root of 319484887 is about 17874.1401751245. The cubic root of 319484887 is about 683.6231687141.

The spelling of 319484887 in words is "three hundred nineteen million, four hundred eighty-four thousand, eight hundred eighty-seven".