11803887 has 20 divisors (see below), whose sum is σ = 18048360. Its totient is φ = 7683984.

The previous prime is 11803879. The next prime is 11803889. The reversal of 11803887 is 78830811.

It is not a de Polignac number, because 11803887 - 2³ = 11803879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11803889) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1789 + ... + 5177.

It is an arithmetic number, because the mean of its divisors is an integer number (902418).

Almost surely, 2^11803887 is an apocalyptic number.

11803887 is a deficient number, since it is larger than the sum of its proper divisors (6244473).

11803887 is an equidigital number, since it uses as much as digits as its factorization.

11803887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3444 (or 3435 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The square root of 11803887 is about 3435.6785356025. The cubic root of 11803887 is about 227.6888067529.

The spelling of 11803887 in words is "eleven million, eight hundred three thousand, eight hundred eighty-seven".