11959859 has 2 divisors, whose sum is σ = 11959860. Its totient is φ = 11959858.

The previous prime is 11959853. The next prime is 11959867. The reversal of 11959859 is 95895911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11959859 - 2⁸ = 11959603 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11959853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5979929 + 5979930.

It is an arithmetic number, because the mean of its divisors is an integer number (5979930).

Almost surely, 2^11959859 is an apocalyptic number.

11959859 is a deficient number, since it is larger than the sum of its proper divisors (1).

11959859 is an equidigital number, since it uses as much as digits as its factorization.

11959859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145800, while the sum is 47.

The square root of 11959859 is about 3458.3029074967. The cubic root of 11959859 is about 228.6872857032.

The spelling of 11959859 in words is "eleven million, nine hundred fifty-nine thousand, eight hundred fifty-nine".