11799861 has 8 divisors (see below), whose sum is σ = 15923040. Its totient is φ = 7771632.

The previous prime is 11799857. The next prime is 11799869. The reversal of 11799861 is 16899711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11799861 - 2² = 11799857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11799869) 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 in 7 ways as a sum of consecutive naturals, for example, 23446 + ... + 23943.

It is an arithmetic number, because the mean of its divisors is an integer number (1990380).

Almost surely, 2^11799861 is an apocalyptic number.

It is an amenable number.

11799861 is a deficient number, since it is larger than the sum of its proper divisors (4123179).

11799861 is an equidigital number, since it uses as much as digits as its factorization.

11799861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47475.

The product of its digits is 27216, while the sum is 42.

The square root of 11799861 is about 3435.0925751717. The cubic root of 11799861 is about 227.6629175586.

The spelling of 11799861 in words is "eleven million, seven hundred ninety-nine thousand, eight hundred sixty-one".