11669839 has 2 divisors, whose sum is σ = 11669840. Its totient is φ = 11669838.

The previous prime is 11669821. The next prime is 11669851. The reversal of 11669839 is 93896611.

It is a strong prime.

It is an emirp because it is prime and its reverse (93896611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11669839 - 2⁷ = 11669711 is a prime.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 11669795 and 11669804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11669869) 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, 5834919 + 5834920.

It is an arithmetic number, because the mean of its divisors is an integer number (5834920).

Almost surely, 2^11669839 is an apocalyptic number.

11669839 is a deficient number, since it is larger than the sum of its proper divisors (1).

11669839 is an equidigital number, since it uses as much as digits as its factorization.

11669839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 43.

The square root of 11669839 is about 3416.1146058058. The cubic root of 11669839 is about 226.8236256671.

The spelling of 11669839 in words is "eleven million, six hundred sixty-nine thousand, eight hundred thirty-nine".