11689959 has 16 divisors (see below), whose sum is σ = 16657280. Its totient is φ = 7270560.

The previous prime is 11689939. The next prime is 11689973. The reversal of 11689959 is 95998611.

It is not a de Polignac number, because 11689959 - 2⁸ = 11689703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11689919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2289 + ... + 5349.

It is an arithmetic number, because the mean of its divisors is an integer number (1041080).

Almost surely, 2^11689959 is an apocalyptic number.

11689959 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

11689959 is a deficient number, since it is larger than the sum of its proper divisors (4967321).

11689959 is a wasteful number, since it uses less digits than its factorization.

11689959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3150.

The product of its digits is 174960, while the sum is 48.

The square root of 11689959 is about 3419.0582036578. The cubic root of 11689959 is about 226.9539065590.

The spelling of 11689959 in words is "eleven million, six hundred eighty-nine thousand, nine hundred fifty-nine".