1116839 has 8 divisors (see below), whose sum is σ = 1203840. Its totient is φ = 1032696.

The previous prime is 1116821. The next prime is 1116851. The reversal of 1116839 is 9386111.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1116839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116809) 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, 134 + ... + 1500.

It is an arithmetic number, because the mean of its divisors is an integer number (150480).

2^1116839 is an apocalyptic number.

1116839 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1116839 is a deficient number, since it is larger than the sum of its proper divisors (87001).

1116839 is a wasteful number, since it uses less digits than its factorization.

1116839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1429.

The product of its digits is 1296, while the sum is 29.

The square root of 1116839 is about 1056.8060370759. The cubic root of 1116839 is about 103.7520907306.

The spelling of 1116839 in words is "one million, one hundred sixteen thousand, eight hundred thirty-nine".