1166386 has 16 divisors (see below), whose sum is σ = 1905624. Its totient is φ = 532224.

The previous prime is 1166383. The next prime is 1166393. The reversal of 1166386 is 6836611.

It can be written as a sum of positive squares in 4 ways, for example, as 534361 + 632025 = 731^2 + 795^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1166383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2740 + ... + 3136.

2^1166386 is an apocalyptic number.

1166386 is a deficient number, since it is larger than the sum of its proper divisors (739238).

1166386 is a wasteful number, since it uses less digits than its factorization.

1166386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525.

The product of its digits is 5184, while the sum is 31.

The square root of 1166386 is about 1079.9935184991. The cubic root of 1166386 is about 105.2642174192.

The spelling of 1166386 in words is "one million, one hundred sixty-six thousand, three hundred eighty-six".