11516387 has 4 divisors (see below), whose sum is σ = 11711640. Its totient is φ = 11321136.

The previous prime is 11516377. The next prime is 11516419. The reversal of 11516387 is 78361511.

11516387 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11516387 - 2⁴ = 11516371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11516377) 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, 97538 + ... + 97655.

It is an arithmetic number, because the mean of its divisors is an integer number (2927910).

Almost surely, 2^11516387 is an apocalyptic number.

11516387 is a deficient number, since it is larger than the sum of its proper divisors (195253).

11516387 is an equidigital number, since it uses as much as digits as its factorization.

11516387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195252.

The product of its digits is 5040, while the sum is 32.

The square root of 11516387 is about 3393.5802627903. The cubic root of 11516387 is about 225.8250336073.

Adding to 11516387 its reverse (78361511), we get a palindrome (89877898).

The spelling of 11516387 in words is "eleven million, five hundred sixteen thousand, three hundred eighty-seven".