1166867 has 4 divisors (see below), whose sum is σ = 1256640. Its totient is φ = 1077096.

The previous prime is 1166861. The next prime is 1166903. The reversal of 1166867 is 7686611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7686611 = 193 ⋅39827.

It is a cyclic number.

It is not a de Polignac number, because 1166867 - 2¹² = 1162771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166861) 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, 44867 + ... + 44892.

It is an arithmetic number, because the mean of its divisors is an integer number (314160).

2^1166867 is an apocalyptic number.

1166867 is a deficient number, since it is larger than the sum of its proper divisors (89773).

1166867 is an equidigital number, since it uses as much as digits as its factorization.

1166867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89772.

The product of its digits is 12096, while the sum is 35.

The square root of 1166867 is about 1080.2161820673. The cubic root of 1166867 is about 105.2786852226.

It can be divided in two parts, 11 and 66867, that multiplied together give a palindrome (735537).

The spelling of 1166867 in words is "one million, one hundred sixty-six thousand, eight hundred sixty-seven".