11678869 has 2 divisors, whose sum is σ = 11678870. Its totient is φ = 11678868.

The previous prime is 11678867. The next prime is 11678899. The reversal of 11678869 is 96887611.

11678869 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9690769 + 1988100 = 3113^2 + 1410^2 .

It is an emirp because it is prime and its reverse (96887611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11678869 - 2¹ = 11678867 is a prime.

It is a super-2 number, since 2×11678869² = 272791962238322, which contains 22 as substring.

Together with 11678867, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11678867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5839434 + 5839435.

It is an arithmetic number, because the mean of its divisors is an integer number (5839435).

Almost surely, 2^11678869 is an apocalyptic number.

It is an amenable number.

11678869 is a deficient number, since it is larger than the sum of its proper divisors (1).

11678869 is an equidigital number, since it uses as much as digits as its factorization.

11678869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 46.

The square root of 11678869 is about 3417.4360271993. The cubic root of 11678869 is about 226.8821151707.

The spelling of 11678869 in words is "eleven million, six hundred seventy-eight thousand, eight hundred sixty-nine".