11867587 has 2 divisors, whose sum is σ = 11867588. Its totient is φ = 11867586.

The previous prime is 11867567. The next prime is 11867591. The reversal of 11867587 is 78576811.

11867587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (78576811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11867587 - 2¹⁵ = 11834819 is a prime.

It is not a weakly prime, because it can be changed into another prime (11867567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5933793 + 5933794.

It is an arithmetic number, because the mean of its divisors is an integer number (5933794).

Almost surely, 2^11867587 is an apocalyptic number.

11867587 is a deficient number, since it is larger than the sum of its proper divisors (1).

11867587 is an equidigital number, since it uses as much as digits as its factorization.

11867587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 43.

The square root of 11867587 is about 3444.9364290216. The cubic root of 11867587 is about 228.0976484878.

The spelling of 11867587 in words is "eleven million, eight hundred sixty-seven thousand, five hundred eighty-seven".