11808769 has 4 divisors (see below), whose sum is σ = 13495744. Its totient is φ = 10121796.

The previous prime is 11808749. The next prime is 11808781. The reversal of 11808769 is 96780811.

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.

It is a cyclic number.

It is not a de Polignac number, because 11808769 - 2⁹ = 11808257 is a prime.

It is a super-2 number, since 2×11808769² = 278894050590722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11808739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 843477 + ... + 843490.

It is an arithmetic number, because the mean of its divisors is an integer number (3373936).

It is a Proth number, since it is equal to 2883 ⋅ 2¹² + 1 and 2883 < 2¹².

Almost surely, 2^11808769 is an apocalyptic number.

It is an amenable number.

11808769 is a deficient number, since it is larger than the sum of its proper divisors (1686975).

11808769 is an equidigital number, since it uses as much as digits as its factorization.

11808769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686974.

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 11808769 is about 3436.3889477182. The cubic root of 11808769 is about 227.7201925595.

The spelling of 11808769 in words is "eleven million, eight hundred eight thousand, seven hundred sixty-nine".