674809319 has 2 divisors, whose sum is σ = 674809320. Its totient is φ = 674809318.

The previous prime is 674809297. The next prime is 674809337. The reversal of 674809319 is 913908476.

674809319 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-674809319 is a prime.

It is a super-2 number, since 2×674809319² = 910735234018487522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674809349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337404659 + 337404660.

It is an arithmetic number, because the mean of its divisors is an integer number (337404660).

Almost surely, 2^674809319 is an apocalyptic number.

674809319 is a deficient number, since it is larger than the sum of its proper divisors (1).

674809319 is an equidigital number, since it uses as much as digits as its factorization.

674809319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 674809319 is about 25977.0921967798. The cubic root of 674809319 is about 877.1227129993.

The spelling of 674809319 in words is "six hundred seventy-four million, eight hundred nine thousand, three hundred nineteen".