11984805 has 24 divisors (see below), whose sum is σ = 23741952. Its totient is φ = 5478624.

The previous prime is 11984789. The next prime is 11984807. The reversal of 11984805 is 50848911.

11984805 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11984805 - 2⁴ = 11984789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11984805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11984807) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18709 + ... + 19338.

It is an arithmetic number, because the mean of its divisors is an integer number (989248).

Almost surely, 2^11984805 is an apocalyptic number.

11984805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11984805 is a deficient number, since it is larger than the sum of its proper divisors (11757147).

11984805 is a wasteful number, since it uses less digits than its factorization.

11984805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38065 (or 38062 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 11984805 is about 3461.9077110749. The cubic root of 11984805 is about 228.8461747341.

The spelling of 11984805 in words is "eleven million, nine hundred eighty-four thousand, eight hundred five".