11664789 has 8 divisors (see below), whose sum is σ = 15884160. Its totient is φ = 7610976.

The previous prime is 11664781. The next prime is 11664799. The reversal of 11664789 is 98746611.

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

It is not a de Polignac number, because 11664789 - 2³ = 11664781 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 11664789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11664781) 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, 41224 + ... + 41505.

It is an arithmetic number, because the mean of its divisors is an integer number (1985520).

Almost surely, 2^11664789 is an apocalyptic number.

It is an amenable number.

11664789 is a deficient number, since it is larger than the sum of its proper divisors (4219371).

11664789 is an equidigital number, since it uses as much as digits as its factorization.

11664789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82779.

The product of its digits is 72576, while the sum is 42.

The square root of 11664789 is about 3415.3753820042. The cubic root of 11664789 is about 226.7909024342.

The spelling of 11664789 in words is "eleven million, six hundred sixty-four thousand, seven hundred eighty-nine".