11879867 has 2 divisors, whose sum is σ = 11879868. Its totient is φ = 11879866.

The previous prime is 11879843. The next prime is 11879869. The reversal of 11879867 is 76897811.

It is a strong prime.

It is an emirp because it is prime and its reverse (76897811) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11879867 is a prime.

It is a super-2 number, since 2×11879867² = 282262479875378, which contains 22 as substring.

Together with 11879869, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11879869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5939933 + 5939934.

It is an arithmetic number, because the mean of its divisors is an integer number (5939934).

Almost surely, 2^11879867 is an apocalyptic number.

11879867 is a deficient number, since it is larger than the sum of its proper divisors (1).

11879867 is an equidigital number, since it uses as much as digits as its factorization.

11879867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 47.

The square root of 11879867 is about 3446.7182942619. The cubic root of 11879867 is about 228.1762961397.

The spelling of 11879867 in words is "eleven million, eight hundred seventy-nine thousand, eight hundred sixty-seven".