11687886 has 24 divisors (see below), whose sum is σ = 28941744. Its totient is φ = 3339360.

The previous prime is 11687861. The next prime is 11687903. The reversal of 11687886 is 68878611.

It is a Curzon number.

It is a nialpdrome in base 11.

It is a zygodrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46255 + ... + 46506.

It is an arithmetic number, because the mean of its divisors is an integer number (1205906).

Almost surely, 2^11687886 is an apocalyptic number.

11687886 is an abundant number, since it is smaller than the sum of its proper divisors (17253858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11687886 is a wasteful number, since it uses less digits than its factorization.

11687886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92776 (or 92773 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 11687886 is about 3418.7550365594. The cubic root of 11687886 is about 226.9404903939.

It can be divided in two parts, 116878 and 86, that added together give a square (116964 = 342²).

The spelling of 11687886 in words is "eleven million, six hundred eighty-seven thousand, eight hundred eighty-six".