11105887 has 4 divisors (see below), whose sum is σ = 11960200. Its totient is φ = 10251576.

The previous prime is 11105881. The next prime is 11105893. The reversal of 11105887 is 78850111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78850111 = 3079 ⋅25609.

It is an interprime number because it is at equal distance from previous prime (11105881) and next prime (11105893).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11105887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11105881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427137 + ... + 427162.

It is an arithmetic number, because the mean of its divisors is an integer number (2990050).

Almost surely, 2^11105887 is an apocalyptic number.

11105887 is a deficient number, since it is larger than the sum of its proper divisors (854313).

11105887 is an equidigital number, since it uses as much as digits as its factorization.

11105887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854312.

The product of its (nonzero) digits is 2240, while the sum is 31.

The square root of 11105887 is about 3332.5496245367. The cubic root of 11105887 is about 223.1093392906.

Adding to 11105887 its reverse (78850111), we get a palindrome (89955998).

The spelling of 11105887 in words is "eleven million, one hundred five thousand, eight hundred eighty-seven".