1166939 has 4 divisors (see below), whose sum is σ = 1184424. Its totient is φ = 1149456.

The previous prime is 1166929. The next prime is 1166947. The reversal of 1166939 is 9396611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1166939 - 2¹⁶ = 1101403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1166899 and 1166908.

It is not an unprimeable number, because it can be changed into a prime (1166929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8642 + ... + 8775.

It is an arithmetic number, because the mean of its divisors is an integer number (296106).

2^1166939 is an apocalyptic number.

1166939 is a deficient number, since it is larger than the sum of its proper divisors (17485).

1166939 is an equidigital number, since it uses as much as digits as its factorization.

1166939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17484.

The product of its digits is 8748, while the sum is 35.

The square root of 1166939 is about 1080.2495082156. The cubic root of 1166939 is about 105.2808505392.

The spelling of 1166939 in words is "one million, one hundred sixty-six thousand, nine hundred thirty-nine".