11618687 has 2 divisors, whose sum is σ = 11618688. Its totient is φ = 11618686.

The previous prime is 11618681. The next prime is 11618723. The reversal of 11618687 is 78681611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11618687 - 2⁶ = 11618623 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 11618687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11618681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5809343 + 5809344.

It is an arithmetic number, because the mean of its divisors is an integer number (5809344).

Almost surely, 2^11618687 is an apocalyptic number.

11618687 is a deficient number, since it is larger than the sum of its proper divisors (1).

11618687 is an equidigital number, since it uses as much as digits as its factorization.

11618687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 38.

The square root of 11618687 is about 3408.6195152877. The cubic root of 11618687 is about 226.4917308925.

The spelling of 11618687 in words is "eleven million, six hundred eighteen thousand, six hundred eighty-seven".