1116643 has 4 divisors (see below), whose sum is σ = 1218168. Its totient is φ = 1015120.

The previous prime is 1116641. The next prime is 1116653. The reversal of 1116643 is 3466111.

It is a happy number.

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 1116643 - 2¹ = 1116641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1116641) 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, 50746 + ... + 50767.

It is an arithmetic number, because the mean of its divisors is an integer number (304542).

2^1116643 is an apocalyptic number.

1116643 is a deficient number, since it is larger than the sum of its proper divisors (101525).

1116643 is a wasteful number, since it uses less digits than its factorization.

1116643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101524.

The product of its digits is 432, while the sum is 22.

The square root of 1116643 is about 1056.7133007585. The cubic root of 1116643 is about 103.7460210406.

The spelling of 1116643 in words is "one million, one hundred sixteen thousand, six hundred forty-three".