11678831 has 2 divisors, whose sum is σ = 11678832. Its totient is φ = 11678830.

The previous prime is 11678827. The next prime is 11678833. The reversal of 11678831 is 13887611.

It is a strong prime.

It is an emirp because it is prime and its reverse (13887611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11678831 - 2² = 11678827 is a prime.

It is a super-2 number, since 2×11678831² = 272790187053122, which contains 22 as substring.

Together with 11678833, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11678791 and 11678800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11678833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5839415 + 5839416.

It is an arithmetic number, because the mean of its divisors is an integer number (5839416).

Almost surely, 2^11678831 is an apocalyptic number.

11678831 is a deficient number, since it is larger than the sum of its proper divisors (1).

11678831 is an equidigital number, since it uses as much as digits as its factorization.

11678831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 35.

The square root of 11678831 is about 3417.4304674711. The cubic root of 11678831 is about 226.8818690987.

The spelling of 11678831 in words is "eleven million, six hundred seventy-eight thousand, eight hundred thirty-one".