11678911 has 2 divisors, whose sum is σ = 11678912. Its totient is φ = 11678910.

The previous prime is 11678903. The next prime is 11678941. The reversal of 11678911 is 11987611.

11678911 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 is an emirp because it is prime and its reverse (11987611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11678911 - 2³ = 11678903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11678941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5839455 + 5839456.

It is an arithmetic number, because the mean of its divisors is an integer number (5839456).

Almost surely, 2^11678911 is an apocalyptic number.

11678911 is a deficient number, since it is larger than the sum of its proper divisors (1).

11678911 is an equidigital number, since it uses as much as digits as its factorization.

11678911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 34.

The square root of 11678911 is about 3417.4421721516. The cubic root of 11678911 is about 226.8823871445.

The spelling of 11678911 in words is "eleven million, six hundred seventy-eight thousand, nine hundred eleven".