11642879 has 2 divisors, whose sum is σ = 11642880. Its totient is φ = 11642878.

The previous prime is 11642863. The next prime is 11642921. The reversal of 11642879 is 97824611.

It is a weak prime.

It is an emirp because it is prime and its reverse (97824611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11642879 - 2⁴ = 11642863 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11642849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5821439 + 5821440.

It is an arithmetic number, because the mean of its divisors is an integer number (5821440).

Almost surely, 2^11642879 is an apocalyptic number.

11642879 is a deficient number, since it is larger than the sum of its proper divisors (1).

11642879 is an equidigital number, since it uses as much as digits as its factorization.

11642879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 38.

The square root of 11642879 is about 3412.1663206825. The cubic root of 11642879 is about 226.6488194810.

It can be divided in two parts, 11642 and 879, that added together give a palindrome (12521).

The spelling of 11642879 in words is "eleven million, six hundred forty-two thousand, eight hundred seventy-nine".