11887886 has 4 divisors (see below), whose sum is σ = 17831832. Its totient is φ = 5943942.

The previous prime is 11887793. The next prime is 11887891. The reversal of 11887886 is 68878811.

11887886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11887886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2971970 + ... + 2971973.

It is an arithmetic number, because the mean of its divisors is an integer number (4457958).

Almost surely, 2^11887886 is an apocalyptic number.

11887886 is a deficient number, since it is larger than the sum of its proper divisors (5943946).

11887886 is an equidigital number, since it uses as much as digits as its factorization.

11887886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5943945.

The product of its digits is 172032, while the sum is 47.

The square root of 11887886 is about 3447.8813784700. The cubic root of 11887886 is about 228.2276248337.

The spelling of 11887886 in words is "eleven million, eight hundred eighty-seven thousand, eight hundred eighty-six".