11616689 has 4 divisors (see below), whose sum is σ = 13276224. Its totient is φ = 9957156.

The previous prime is 11616677. The next prime is 11616691. The reversal of 11616689 is 98661611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98661611 = 8923 ⋅11057.

It is a cyclic number.

It is not a de Polignac number, because 11616689 - 2⁴ = 11616673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11616659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 829757 + ... + 829770.

It is an arithmetic number, because the mean of its divisors is an integer number (3319056).

Almost surely, 2^11616689 is an apocalyptic number.

It is an amenable number.

11616689 is a deficient number, since it is larger than the sum of its proper divisors (1659535).

11616689 is an equidigital number, since it uses as much as digits as its factorization.

11616689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659534.

The product of its digits is 15552, while the sum is 38.

The square root of 11616689 is about 3408.3264221609. The cubic root of 11616689 is about 226.4787473135.

The spelling of 11616689 in words is "eleven million, six hundred sixteen thousand, six hundred eighty-nine".