11543886 has 12 divisors (see below), whose sum is σ = 25011792. Its totient is φ = 3847956.

The previous prime is 11543879. The next prime is 11543893. The reversal of 11543886 is 68834511.

It is an interprime number because it is at equal distance from previous prime (11543879) and next prime (11543893).

It is a super-2 number, since 2×11543886² = 266522607961992, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11543886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 320646 + ... + 320681.

It is an arithmetic number, because the mean of its divisors is an integer number (2084316).

Almost surely, 2^11543886 is an apocalyptic number.

11543886 is an abundant number, since it is smaller than the sum of its proper divisors (13467906).

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

11543886 is a wasteful number, since it uses less digits than its factorization.

11543886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641335 (or 641332 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 11543886 is about 3397.6294677319. The cubic root of 11543886 is about 226.0046335229.

The spelling of 11543886 in words is "eleven million, five hundred forty-three thousand, eight hundred eighty-six".