11689579 has 8 divisors (see below), whose sum is σ = 13423680. Its totient is φ = 10067400.

The previous prime is 11689571. The next prime is 11689583. The reversal of 11689579 is 97598611.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11689579 - 2³ = 11689571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11689571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27757 + ... + 28174.

It is an arithmetic number, because the mean of its divisors is an integer number (1677960).

Almost surely, 2^11689579 is an apocalyptic number.

11689579 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

11689579 is a deficient number, since it is larger than the sum of its proper divisors (1734101).

11689579 is a wasteful number, since it uses less digits than its factorization.

11689579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55961.

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

The square root of 11689579 is about 3419.0026323476. The cubic root of 11689579 is about 226.9514473711.

The spelling of 11689579 in words is "eleven million, six hundred eighty-nine thousand, five hundred seventy-nine".