319484813 has 4 divisors (see below), whose sum is σ = 323074620. Its totient is φ = 315895008.

The previous prime is 319484807. The next prime is 319484819. The reversal of 319484813 is 318484913.

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

It is an interprime number because it is at equal distance from previous prime (319484807) and next prime (319484819).

It can be written as a sum of positive squares in 2 ways, for example, as 184878409 + 134606404 = 13597^2 + 11602^2 .

It is a cyclic number.

It is not a de Polignac number, because 319484813 - 2¹² = 319480717 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 (319484819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1794770 + ... + 1794947.

It is an arithmetic number, because the mean of its divisors is an integer number (80768655).

Almost surely, 2^319484813 is an apocalyptic number.

It is an amenable number.

319484813 is a deficient number, since it is larger than the sum of its proper divisors (3589807).

319484813 is an equidigital number, since it uses as much as digits as its factorization.

319484813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3589806.

The product of its digits is 82944, while the sum is 41.

The square root of 319484813 is about 17874.1381050947. The cubic root of 319484813 is about 683.6231159332.

The spelling of 319484813 in words is "three hundred nineteen million, four hundred eighty-four thousand, eight hundred thirteen".