319454893 has 2 divisors, whose sum is σ = 319454894. Its totient is φ = 319454892.

The previous prime is 319454887. The next prime is 319454953. The reversal of 319454893 is 398454913.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 248945284 + 70509609 = 15778^2 + 8397^2 .

It is an emirp because it is prime and its reverse (398454913) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 319454893 - 2⁹ = 319454381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (319454873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159727446 + 159727447.

It is an arithmetic number, because the mean of its divisors is an integer number (159727447).

Almost surely, 2^319454893 is an apocalyptic number.

It is an amenable number.

319454893 is a deficient number, since it is larger than the sum of its proper divisors (1).

319454893 is an equidigital number, since it uses as much as digits as its factorization.

319454893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 46.

The square root of 319454893 is about 17873.3011220647. The cubic root of 319454893 is about 683.6017746557.

The spelling of 319454893 in words is "three hundred nineteen million, four hundred fifty-four thousand, eight hundred ninety-three".