319683869 has 2 divisors, whose sum is σ = 319683870. Its totient is φ = 319683868.

The previous prime is 319683823. The next prime is 319683971. The reversal of 319683869 is 968386913.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 275991769 + 43692100 = 16613^2 + 6610^2 .

It is a cyclic number.

It is not a de Polignac number, because 319683869 - 2¹⁶ = 319618333 is a prime.

It is a super-2 number, since 2×319683869² = 204395552197618322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 319683869.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (319683769) 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, 159841934 + 159841935.

It is an arithmetic number, because the mean of its divisors is an integer number (159841935).

Almost surely, 2^319683869 is an apocalyptic number.

It is an amenable number.

319683869 is a deficient number, since it is larger than the sum of its proper divisors (1).

319683869 is an equidigital number, since it uses as much as digits as its factorization.

319683869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1679616, while the sum is 53.

The square root of 319683869 is about 17879.7055065233. The cubic root of 319683869 is about 683.7650642885.

The spelling of 319683869 in words is "three hundred nineteen million, six hundred eighty-three thousand, eight hundred sixty-nine".