696091789 has 2 divisors, whose sum is σ = 696091790. Its totient is φ = 696091788.

The previous prime is 696091777. The next prime is 696091811. The reversal of 696091789 is 987190696.

696091789 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., 661775625 + 34316164 = 25725^2 + 5858^2 .

It is a cyclic number.

It is not a de Polignac number, because 696091789 - 2⁷ = 696091661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (696091709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348045894 + 348045895.

It is an arithmetic number, because the mean of its divisors is an integer number (348045895).

Almost surely, 2^696091789 is an apocalyptic number.

It is an amenable number.

696091789 is a deficient number, since it is larger than the sum of its proper divisors (1).

696091789 is an equidigital number, since it uses as much as digits as its factorization.

696091789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1469664, while the sum is 55.

The square root of 696091789 is about 26383.5514857269. The cubic root of 696091789 is about 886.2484806176.

The spelling of 696091789 in words is "six hundred ninety-six million, ninety-one thousand, seven hundred eighty-nine".