673290749 has 2 divisors, whose sum is σ = 673290750. Its totient is φ = 673290748.

The previous prime is 673290731. The next prime is 673290773. The reversal of 673290749 is 947092376.

673290749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 506700100 + 166590649 = 22510^2 + 12907^2 .

It is a cyclic number.

It is not a de Polignac number, because 673290749 - 2¹⁶ = 673225213 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673290719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336645374 + 336645375.

It is an arithmetic number, because the mean of its divisors is an integer number (336645375).

Almost surely, 2^673290749 is an apocalyptic number.

It is an amenable number.

673290749 is a deficient number, since it is larger than the sum of its proper divisors (1).

673290749 is an equidigital number, since it uses as much as digits as its factorization.

673290749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 571536, while the sum is 47.

The square root of 673290749 is about 25947.8467122033. The cubic root of 673290749 is about 876.4642689051.

The spelling of 673290749 in words is "six hundred seventy-three million, two hundred ninety thousand, seven hundred forty-nine".