10111806 has 12 divisors (see below), whose sum is σ = 21908952. Its totient is φ = 3370596.

The previous prime is 10111747. The next prime is 10111811. The reversal of 10111806 is 60811101.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 561767 = 10111806 / (1 + 0 + 1 + 1 + 1 + 8 + 0 + 6).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 280866 + ... + 280901.

It is an arithmetic number, because the mean of its divisors is an integer number (1825746).

Almost surely, 2^10111806 is an apocalyptic number.

10111806 is an abundant number, since it is smaller than the sum of its proper divisors (11797146).

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

10111806 is a wasteful number, since it uses less digits than its factorization.

10111806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561775 (or 561772 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

The square root of 10111806 is about 3179.9066024020. The cubic root of 10111806 is about 216.2434241265.

Adding to 10111806 its reverse (60811101), we get a palindrome (70922907).

The spelling of 10111806 in words is "ten million, one hundred eleven thousand, eight hundred six".