3691693589 has 2 divisors, whose sum is σ = 3691693590. Its totient is φ = 3691693588.

The previous prime is 3691693573. The next prime is 3691693619. The reversal of 3691693589 is 9853961963.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3028631089 + 663062500 = 55033^2 + 25750^2 .

It is a cyclic number.

It is not a de Polignac number, because 3691693589 - 2⁴ = 3691693573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3691693519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1845846794 + 1845846795.

It is an arithmetic number, because the mean of its divisors is an integer number (1845846795).

Almost surely, 2^3691693589 is an apocalyptic number.

It is an amenable number.

3691693589 is a deficient number, since it is larger than the sum of its proper divisors (1).

3691693589 is an equidigital number, since it uses as much as digits as its factorization.

3691693589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9447840, while the sum is 59.

The square root of 3691693589 is about 60759.3086613072. The cubic root of 3691693589 is about 1545.5220864850.

The spelling of 3691693589 in words is "three billion, six hundred ninety-one million, six hundred ninety-three thousand, five hundred eighty-nine".