319448407 has 2 divisors, whose sum is σ = 319448408. Its totient is φ = 319448406.

The previous prime is 319448351. The next prime is 319448443. The reversal of 319448407 is 704844913.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 319448407 - 2⁷ = 319448279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 319448407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (319448477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159724203 + 159724204.

It is an arithmetic number, because the mean of its divisors is an integer number (159724204).

Almost surely, 2^319448407 is an apocalyptic number.

319448407 is a deficient number, since it is larger than the sum of its proper divisors (1).

319448407 is an equidigital number, since it uses as much as digits as its factorization.

319448407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 319448407 is about 17873.1196773255. The cubic root of 319448407 is about 683.5971481589.

The spelling of 319448407 in words is "three hundred nineteen million, four hundred forty-eight thousand, four hundred seven".