1166886 has 60 divisors (see below), whose sum is σ = 3058692. Its totient is φ = 333396.

The previous prime is 1166861. The next prime is 1166903. The reversal of 1166886 is 6886611.

Its product of digits (13824) is a multiple of the sum of its prime divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1166886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 166695 + ... + 166701.

2^1166886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1166886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1529346).

1166886 is an abundant number, since it is smaller than the sum of its proper divisors (1891806).

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

1166886 is an frugal number, since it uses more digits than its factorization.

1166886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45 (or 12 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 1166886 is about 1080.2249765674. The cubic root of 1166886 is about 105.2792566343.

Multiplying 1166886 by its product of digits (13824), we get a square (16131032064 = 127008²).

The spelling of 1166886 in words is "one million, one hundred sixty-six thousand, eight hundred eighty-six".