11886990 has 32 divisors (see below), whose sum is σ = 29302560. Its totient is φ = 3083904.

The previous prime is 11886983. The next prime is 11886991. The reversal of 11886990 is 9968811.

11886990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11886991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4245 + ... + 6464.

It is an arithmetic number, because the mean of its divisors is an integer number (915705).

Almost surely, 2^11886990 is an apocalyptic number.

11886990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11886990 is an abundant number, since it is smaller than the sum of its proper divisors (17415570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11886990 is a wasteful number, since it uses less digits than its factorization.

11886990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10756.

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 11886990 is about 3447.7514411570. The cubic root of 11886990 is about 228.2218907868.

The spelling of 11886990 in words is "eleven million, eight hundred eighty-six thousand, nine hundred ninety".