11973859 has 2 divisors, whose sum is σ = 11973860. Its totient is φ = 11973858.

The previous prime is 11973851. The next prime is 11973883. The reversal of 11973859 is 95837911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11973859 - 2³ = 11973851 is a prime.

It is not a weakly prime, because it can be changed into another prime (11973851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5986929 + 5986930.

It is an arithmetic number, because the mean of its divisors is an integer number (5986930).

Almost surely, 2^11973859 is an apocalyptic number.

11973859 is a deficient number, since it is larger than the sum of its proper divisors (1).

11973859 is an equidigital number, since it uses as much as digits as its factorization.

11973859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 43.

The square root of 11973859 is about 3460.3264296884. The cubic root of 11973859 is about 228.7764833423.

The spelling of 11973859 in words is "eleven million, nine hundred seventy-three thousand, eight hundred fifty-nine".