11812859 has 4 divisors (see below), whose sum is σ = 11929920. Its totient is φ = 11695800.

The previous prime is 11812849. The next prime is 11812873. The reversal of 11812859 is 95821811.

11812859 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95821811 = 6691 ⋅14321.

It is a de Polignac number, because none of the positive numbers 2^k-11812859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11812819) 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 in 3 ways as a sum of consecutive naturals, for example, 58379 + ... + 58580.

It is an arithmetic number, because the mean of its divisors is an integer number (2982480).

Almost surely, 2^11812859 is an apocalyptic number.

11812859 is a deficient number, since it is larger than the sum of its proper divisors (117061).

11812859 is a wasteful number, since it uses less digits than its factorization.

11812859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117060.

The product of its digits is 5760, while the sum is 35.

The square root of 11812859 is about 3436.9839976351. The cubic root of 11812859 is about 227.7464800323.

The spelling of 11812859 in words is "eleven million, eight hundred twelve thousand, eight hundred fifty-nine".