11861199 has 12 divisors (see below), whose sum is σ = 19580496. Its totient is φ = 6777792.

The previous prime is 11861197. The next prime is 11861219. The reversal of 11861199 is 99116811.

It is not a de Polignac number, because 11861199 - 2¹ = 11861197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11861191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94074 + ... + 94199.

It is an arithmetic number, because the mean of its divisors is an integer number (1631708).

Almost surely, 2^11861199 is an apocalyptic number.

11861199 is a deficient number, since it is larger than the sum of its proper divisors (7719297).

11861199 is a wasteful number, since it uses less digits than its factorization.

11861199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188286 (or 188283 counting only the distinct ones).

The product of its digits is 3888, while the sum is 36.

The square root of 11861199 is about 3444.0091463293. The cubic root of 11861199 is about 228.0567148846.

The spelling of 11861199 in words is "eleven million, eight hundred sixty-one thousand, one hundred ninety-nine".