673336723 has 2 divisors, whose sum is σ = 673336724. Its totient is φ = 673336722.

The previous prime is 673336721. The next prime is 673336739. The reversal of 673336723 is 327633376.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 673336723 - 2¹ = 673336721 is a prime.

Together with 673336721, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (673336721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336668361 + 336668362.

It is an arithmetic number, because the mean of its divisors is an integer number (336668362).

Almost surely, 2^673336723 is an apocalyptic number.

673336723 is a deficient number, since it is larger than the sum of its proper divisors (1).

673336723 is an equidigital number, since it uses as much as digits as its factorization.

673336723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 40.

The square root of 673336723 is about 25948.7325894734. The cubic root of 673336723 is about 876.4842175188.

The spelling of 673336723 in words is "six hundred seventy-three million, three hundred thirty-six thousand, seven hundred twenty-three".