1166871 has 8 divisors (see below), whose sum is σ = 1606144. Its totient is φ = 752760.

The previous prime is 1166861. The next prime is 1166903. The reversal of 1166871 is 1786611.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1166871 - 2⁵ = 1166839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166801) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6181 + ... + 6366.

It is an arithmetic number, because the mean of its divisors is an integer number (200768).

2^1166871 is an apocalyptic number.

1166871 is a deficient number, since it is larger than the sum of its proper divisors (439273).

1166871 is a wasteful number, since it uses less digits than its factorization.

1166871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12581.

The product of its digits is 2016, while the sum is 30.

The square root of 1166871 is about 1080.2180335469. The cubic root of 1166871 is about 105.2788055203.

The spelling of 1166871 in words is "one million, one hundred sixty-six thousand, eight hundred seventy-one".