11855799 has 12 divisors (see below), whose sum is σ = 17588376. Its totient is φ = 7690032.

The previous prime is 11855773. The next prime is 11855813. The reversal of 11855799 is 99755811.

11855799 is a `hidden beast` number, since 1 + 1 + 8 + 557 + 99 = 666.

It is not a de Polignac number, because 11855799 - 2¹³ = 11847607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11855759) 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, 17469 + ... + 18134.

It is an arithmetic number, because the mean of its divisors is an integer number (1465698).

Almost surely, 2^11855799 is an apocalyptic number.

11855799 is a deficient number, since it is larger than the sum of its proper divisors (5732577).

11855799 is a wasteful number, since it uses less digits than its factorization.

11855799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35646 (or 35643 counting only the distinct ones).

The product of its digits is 113400, while the sum is 45.

The square root of 11855799 is about 3443.2250870369. The cubic root of 11855799 is about 228.0221008124.

The spelling of 11855799 in words is "eleven million, eight hundred fifty-five thousand, seven hundred ninety-nine".