319674473 has 2 divisors, whose sum is σ = 319674474. Its totient is φ = 319674472.

The previous prime is 319674469. The next prime is 319674491. The reversal of 319674473 is 374476913.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199289689 + 120384784 = 14117^2 + 10972^2 .

It is a cyclic number.

It is not a de Polignac number, because 319674473 - 2² = 319674469 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (319674463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159837236 + 159837237.

It is an arithmetic number, because the mean of its divisors is an integer number (159837237).

Almost surely, 2^319674473 is an apocalyptic number.

It is an amenable number.

319674473 is a deficient number, since it is larger than the sum of its proper divisors (1).

319674473 is an equidigital number, since it uses as much as digits as its factorization.

319674473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 44.

The square root of 319674473 is about 17879.4427485870. The cubic root of 319674473 is about 683.7583652543.

The spelling of 319674473 in words is "three hundred nineteen million, six hundred seventy-four thousand, four hundred seventy-three".