13611689 has 8 divisors (see below), whose sum is σ = 16752960. Its totient is φ = 10769616.

The previous prime is 13611673. The next prime is 13611691. The reversal of 13611689 is 98611631.

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

It is not a de Polignac number, because 13611689 - 2⁴ = 13611673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13611659) 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, 74699 + ... + 74880.

It is an arithmetic number, because the mean of its divisors is an integer number (2094120).

Almost surely, 2^13611689 is an apocalyptic number.

It is an amenable number.

13611689 is a deficient number, since it is larger than the sum of its proper divisors (3141271).

13611689 is a wasteful number, since it uses less digits than its factorization.

13611689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149599.

The product of its digits is 7776, while the sum is 35.

The square root of 13611689 is about 3689.4022551085. The cubic root of 13611689 is about 238.7650042195.

The spelling of 13611689 in words is "thirteen million, six hundred eleven thousand, six hundred eighty-nine".