11988769 has 16 divisors (see below), whose sum is σ = 13434624. Its totient is φ = 10627200.

The previous prime is 11988751. The next prime is 11988799. The reversal of 11988769 is 96788911.

It is not a de Polignac number, because 11988769 - 2⁵ = 11988737 is a prime.

It is a super-2 number, since 2×11988769² = 287461164270722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11988719) 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, 44104 + ... + 44374.

It is an arithmetic number, because the mean of its divisors is an integer number (839664).

Almost surely, 2^11988769 is an apocalyptic number.

It is an amenable number.

11988769 is a deficient number, since it is larger than the sum of its proper divisors (1445855).

11988769 is a wasteful number, since it uses less digits than its factorization.

11988769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408.

The product of its digits is 217728, while the sum is 49.

The square root of 11988769 is about 3462.4801804487. The cubic root of 11988769 is about 228.8714024076.

It can be divided in two parts, 119 and 88769, that added together give a palindrome (88888).

The spelling of 11988769 in words is "eleven million, nine hundred eighty-eight thousand, seven hundred sixty-nine".