11518887 has 16 divisors (see below), whose sum is σ = 16404480. Its totient is φ = 7173600.

The previous prime is 11518867. The next prime is 11518891. The reversal of 11518887 is 78881511.

11518887 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 11518887 - 2¹² = 11514791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11518817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 562 + ... + 4832.

It is an arithmetic number, because the mean of its divisors is an integer number (1025280).

Almost surely, 2^11518887 is an apocalyptic number.

11518887 is a deficient number, since it is larger than the sum of its proper divisors (4885593).

11518887 is a wasteful number, since it uses less digits than its factorization.

11518887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4334.

The product of its digits is 17920, while the sum is 39.

The square root of 11518887 is about 3393.9485853501. The cubic root of 11518887 is about 225.8413732729.

The spelling of 11518887 in words is "eleven million, five hundred eighteen thousand, eight hundred eighty-seven".