1166699 has 4 divisors (see below), whose sum is σ = 1206960. Its totient is φ = 1126440.

The previous prime is 1166687. The next prime is 1166713. The reversal of 1166699 is 9966611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9966611 = 131 ⋅76081.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1166699 is a prime.

It is a super-2 number, since 2×1166699² = 2722373113202, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1166609) 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, 20087 + ... + 20144.

It is an arithmetic number, because the mean of its divisors is an integer number (301740).

2^1166699 is an apocalyptic number.

1166699 is a deficient number, since it is larger than the sum of its proper divisors (40261).

1166699 is an equidigital number, since it uses as much as digits as its factorization.

1166699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40260.

The product of its digits is 17496, while the sum is 38.

The square root of 1166699 is about 1080.1384170559. The cubic root of 1166699 is about 105.2736324708.

The spelling of 1166699 in words is "one million, one hundred sixty-six thousand, six hundred ninety-nine".