673704919 has 2 divisors, whose sum is σ = 673704920. Its totient is φ = 673704918.

The previous prime is 673704881. The next prime is 673704931. The reversal of 673704919 is 919407376.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 673704919 - 2⁷ = 673704791 is a prime.

It is a super-2 number, since 2×673704919² = 907756635769593122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673704959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336852459 + 336852460.

It is an arithmetic number, because the mean of its divisors is an integer number (336852460).

Almost surely, 2^673704919 is an apocalyptic number.

673704919 is a deficient number, since it is larger than the sum of its proper divisors (1).

673704919 is an equidigital number, since it uses as much as digits as its factorization.

673704919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 673704919 is about 25955.8263016225. The cubic root of 673704919 is about 876.6439489809.

The spelling of 673704919 in words is "six hundred seventy-three million, seven hundred four thousand, nine hundred nineteen".