673383749 has 2 divisors, whose sum is σ = 673383750. Its totient is φ = 673383748.

The previous prime is 673383743. The next prime is 673383791. The reversal of 673383749 is 947383376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 378574849 + 294808900 = 19457^2 + 17170^2 .

It is a cyclic number.

It is not a de Polignac number, because 673383749 - 2¹² = 673379653 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 673383697 and 673383706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673383743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336691874 + 336691875.

It is an arithmetic number, because the mean of its divisors is an integer number (336691875).

Almost surely, 2^673383749 is an apocalyptic number.

It is an amenable number.

673383749 is a deficient number, since it is larger than the sum of its proper divisors (1).

673383749 is an equidigital number, since it uses as much as digits as its factorization.

673383749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 50.

The square root of 673383749 is about 25949.6387065408. The cubic root of 673383749 is about 876.5046216673.

The spelling of 673383749 in words is "six hundred seventy-three million, three hundred eighty-three thousand, seven hundred forty-nine".