11409685 has 16 divisors (see below), whose sum is σ = 16031232. Its totient is φ = 7632000.

The previous prime is 11409683. The next prime is 11409689. The reversal of 11409685 is 58690411.

It is not a de Polignac number, because 11409685 - 2¹ = 11409683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11409685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11409683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2541 + ... + 5410.

It is an arithmetic number, because the mean of its divisors is an integer number (1001952).

Almost surely, 2^11409685 is an apocalyptic number.

It is an amenable number.

11409685 is a deficient number, since it is larger than the sum of its proper divisors (4621547).

11409685 is an equidigital number, since it uses as much as digits as its factorization.

11409685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8004.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 11409685 is about 3377.8225234609. The cubic root of 11409685 is about 225.1254280086.

The spelling of 11409685 in words is "eleven million, four hundred nine thousand, six hundred eighty-five".