11421886 has 16 divisors (see below), whose sum is σ = 19633536. Its totient is φ = 4881816.

The previous prime is 11421877. The next prime is 11421887. The reversal of 11421886 is 68812411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11421887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5665 + ... + 7411.

It is an arithmetic number, because the mean of its divisors is an integer number (1227096).

Almost surely, 2^11421886 is an apocalyptic number.

11421886 is a deficient number, since it is larger than the sum of its proper divisors (8211650).

11421886 is a wasteful number, since it uses less digits than its factorization.

11421886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223.

The product of its digits is 3072, while the sum is 31.

The square root of 11421886 is about 3379.6280860473. The cubic root of 11421886 is about 225.2056457313.

The spelling of 11421886 in words is "eleven million, four hundred twenty-one thousand, eight hundred eighty-six".