1198666 has 8 divisors (see below), whose sum is σ = 2054880. Its totient is φ = 513708.

The previous prime is 1198661. The next prime is 1198669. The reversal of 1198666 is 6668911.

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

It is not an unprimeable number, because it can be changed into a prime (1198661) 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, 42796 + ... + 42823.

It is an arithmetic number, because the mean of its divisors is an integer number (256860).

2^1198666 is an apocalyptic number.

1198666 is a deficient number, since it is larger than the sum of its proper divisors (856214).

1198666 is an equidigital number, since it uses as much as digits as its factorization.

1198666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85628.

The product of its digits is 15552, while the sum is 37.

The square root of 1198666 is about 1094.8360607872. The cubic root of 1198666 is about 106.2264649141.

The spelling of 1198666 in words is "one million, one hundred ninety-eight thousand, six hundred sixty-six".