673068391 has 2 divisors, whose sum is σ = 673068392. Its totient is φ = 673068390.

The previous prime is 673068367. The next prime is 673068433. The reversal of 673068391 is 193860376.

673068391 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 is a cyclic number.

It is not a de Polignac number, because 673068391 - 2²¹ = 670971239 is a prime.

It is equal to p_34929439 and since 673068391 and 34929439 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673068691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336534195 + 336534196.

It is an arithmetic number, because the mean of its divisors is an integer number (336534196).

Almost surely, 2^673068391 is an apocalyptic number.

673068391 is a deficient number, since it is larger than the sum of its proper divisors (1).

673068391 is an equidigital number, since it uses as much as digits as its factorization.

673068391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 673068391 is about 25943.5616483165. The cubic root of 673068391 is about 876.3677725547.

The spelling of 673068391 in words is "six hundred seventy-three million, sixty-eight thousand, three hundred ninety-one".