11689597 has 2 divisors, whose sum is σ = 11689598. Its totient is φ = 11689596.

The previous prime is 11689583. The next prime is 11689609. The reversal of 11689597 is 79598611.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11689561 + 36 = 3419^2 + 6^2 .

It is a cyclic number.

It is not a de Polignac number, because 11689597 - 2¹⁵ = 11656829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11689537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5844798 + 5844799.

It is an arithmetic number, because the mean of its divisors is an integer number (5844799).

Almost surely, 2^11689597 is an apocalyptic number.

It is an amenable number.

11689597 is a deficient number, since it is larger than the sum of its proper divisors (1).

11689597 is an equidigital number, since it uses as much as digits as its factorization.

11689597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 46.

The square root of 11689597 is about 3419.0052646932. The cubic root of 11689597 is about 226.9515638601.

The spelling of 11689597 in words is "eleven million, six hundred eighty-nine thousand, five hundred ninety-seven".