11718587 has 2 divisors, whose sum is σ = 11718588. Its totient is φ = 11718586.

The previous prime is 11718563. The next prime is 11718607. The reversal of 11718587 is 78581711.

11718587 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11718587 - 2¹² = 11714491 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11718587.

It is not a weakly prime, because it can be changed into another prime (11718517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5859293 + 5859294.

It is an arithmetic number, because the mean of its divisors is an integer number (5859294).

Almost surely, 2^11718587 is an apocalyptic number.

11718587 is a deficient number, since it is larger than the sum of its proper divisors (1).

11718587 is an equidigital number, since it uses as much as digits as its factorization.

11718587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15680, while the sum is 38.

The square root of 11718587 is about 3423.2421766507. The cubic root of 11718587 is about 227.1390209768.

The spelling of 11718587 in words is "eleven million, seven hundred eighteen thousand, five hundred eighty-seven".