1166990 has 24 divisors (see below), whose sum is σ = 2314008. Its totient is φ = 420240.

The previous prime is 1166987. The next prime is 1167011. The reversal of 1166990 is 996611.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11279 + ... + 11381.

It is an arithmetic number, because the mean of its divisors is an integer number (96417).

2^1166990 is an apocalyptic number.

1166990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1166990 is a deficient number, since it is larger than the sum of its proper divisors (1147018).

1166990 is a wasteful number, since it uses less digits than its factorization.

1166990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 1166990 is about 1080.2731136153. The cubic root of 1166990 is about 105.2823842512.

The spelling of 1166990 in words is "one million, one hundred sixty-six thousand, nine hundred ninety".