673739323 has 2 divisors, whose sum is σ = 673739324. Its totient is φ = 673739322.

The previous prime is 673739293. The next prime is 673739357. The reversal of 673739323 is 323937376.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-673739323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 673739323.

It is not a weakly prime, because it can be changed into another prime (673739383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336869661 + 336869662.

It is an arithmetic number, because the mean of its divisors is an integer number (336869662).

Almost surely, 2^673739323 is an apocalyptic number.

673739323 is a deficient number, since it is larger than the sum of its proper divisors (1).

673739323 is an equidigital number, since it uses as much as digits as its factorization.

673739323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 428652, while the sum is 43.

The square root of 673739323 is about 25956.4890345362. The cubic root of 673739323 is about 876.6588712137.

The spelling of 673739323 in words is "six hundred seventy-three million, seven hundred thirty-nine thousand, three hundred twenty-three".