11953806 has 16 divisors (see below), whose sum is σ = 24211200. Its totient is φ = 3934008.

The previous prime is 11953801. The next prime is 11953807. The reversal of 11953806 is 60835911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11953801) 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, 12136 + ... + 13083.

It is an arithmetic number, because the mean of its divisors is an integer number (1513200).

Almost surely, 2^11953806 is an apocalyptic number.

11953806 is an abundant number, since it is smaller than the sum of its proper divisors (12257394).

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

11953806 is a wasteful number, since it uses less digits than its factorization.

11953806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25303.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 11953806 is about 3457.4276565100. The cubic root of 11953806 is about 228.6486989124.

The spelling of 11953806 in words is "eleven million, nine hundred fifty-three thousand, eight hundred six".