11421806 has 16 divisors (see below), whose sum is σ = 18804528. Its totient is φ = 5160000.

The previous prime is 11421803. The next prime is 11421859. The reversal of 11421806 is 60812411.

11421806 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 (11421803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2306 + ... + 5306.

It is an arithmetic number, because the mean of its divisors is an integer number (1175283).

Almost surely, 2^11421806 is an apocalyptic number.

11421806 is a deficient number, since it is larger than the sum of its proper divisors (7382722).

11421806 is a wasteful number, since it uses less digits than its factorization.

11421806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3187.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 11421806 is about 3379.6162504048. The cubic root of 11421806 is about 225.2051199427.

The spelling of 11421806 in words is "eleven million, four hundred twenty-one thousand, eight hundred six".