704067391 has 2 divisors, whose sum is σ = 704067392. Its totient is φ = 704067390.

The previous prime is 704067389. The next prime is 704067449. The reversal of 704067391 is 193760407.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 704067391 - 2¹ = 704067389 is a prime.

Together with 704067389, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 704067391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (704067361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352033695 + 352033696.

It is an arithmetic number, because the mean of its divisors is an integer number (352033696).

Almost surely, 2^704067391 is an apocalyptic number.

704067391 is a deficient number, since it is larger than the sum of its proper divisors (1).

704067391 is an equidigital number, since it uses as much as digits as its factorization.

704067391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 704067391 is about 26534.2682393919. The cubic root of 704067391 is about 889.6204209740.

The spelling of 704067391 in words is "seven hundred four million, sixty-seven thousand, three hundred ninety-one".