1117666 has 16 divisors (see below), whose sum is σ = 1850688. Its totient is φ = 502000.

The previous prime is 1117661. The next prime is 1117673. The reversal of 1117666 is 6667111.

It is a plaindrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (1117661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1971 + ... + 2473.

It is an arithmetic number, because the mean of its divisors is an integer number (115668).

2^1117666 is an apocalyptic number.

1117666 is a deficient number, since it is larger than the sum of its proper divisors (733022).

1117666 is a wasteful number, since it uses less digits than its factorization.

1117666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617.

The product of its digits is 1512, while the sum is 28.

The square root of 1117666 is about 1057.1972379835. The cubic root of 1117666 is about 103.7776932896. Note that the first 3 decimals are identical.

It can be divided in two parts, 111 and 7666, that added together give a palindrome (7777).

The spelling of 1117666 in words is "one million, one hundred seventeen thousand, six hundred sixty-six".