673868089 has 2 divisors, whose sum is σ = 673868090. Its totient is φ = 673868088.

The previous prime is 673868077. The next prime is 673868113. The reversal of 673868089 is 980868376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 486643600 + 187224489 = 22060^2 + 13683^2 .

It is a cyclic number.

It is not a de Polignac number, because 673868089 - 2⁵ = 673868057 is a prime.

It is not a weakly prime, because it can be changed into another prime (673868189) 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, 336934044 + 336934045.

It is an arithmetic number, because the mean of its divisors is an integer number (336934045).

Almost surely, 2^673868089 is an apocalyptic number.

It is an amenable number.

673868089 is a deficient number, since it is larger than the sum of its proper divisors (1).

673868089 is an equidigital number, since it uses as much as digits as its factorization.

673868089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The square root of 673868089 is about 25958.9693362429. The cubic root of 673868089 is about 876.7147170786.

The spelling of 673868089 in words is "six hundred seventy-three million, eight hundred sixty-eight thousand, eighty-nine".