319868929 has 2 divisors, whose sum is σ = 319868930. Its totient is φ = 319868928.

The previous prime is 319868911. The next prime is 319868951. The reversal of 319868929 is 929868913.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199374400 + 120494529 = 14120^2 + 10977^2 .

It is a cyclic number.

It is not a de Polignac number, because 319868929 - 2²⁷ = 185651201 is a prime.

It is a super-2 number, since 2×319868929² = 204632263479214082, 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 319868929.

It is not a weakly prime, because it can be changed into another prime (319868909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159934464 + 159934465.

It is an arithmetic number, because the mean of its divisors is an integer number (159934465).

Almost surely, 2^319868929 is an apocalyptic number.

It is an amenable number.

319868929 is a deficient number, since it is larger than the sum of its proper divisors (1).

319868929 is an equidigital number, since it uses as much as digits as its factorization.

319868929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1679616, while the sum is 55.

The square root of 319868929 is about 17884.8798989538. The cubic root of 319868929 is about 683.8969791436.

It can be divided in two parts, 3198 and 68929, that added together give a palindrome (72127).

The spelling of 319868929 in words is "three hundred nineteen million, eight hundred sixty-eight thousand, nine hundred twenty-nine".