1117389 has 16 divisors (see below), whose sum is σ = 1834112. Its totient is φ = 589248.

The previous prime is 1117379. The next prime is 1117433. The reversal of 1117389 is 9837111.

It is not a de Polignac number, because 1117389 - 2¹³ = 1109197 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

1117389 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1774 + ... + 2319.

It is an arithmetic number, because the mean of its divisors is an integer number (114632).

2^1117389 is an apocalyptic number.

It is an amenable number.

1117389 is a deficient number, since it is larger than the sum of its proper divisors (716723).

1117389 is a wasteful number, since it uses less digits than its factorization.

1117389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4116.

The product of its digits is 1512, while the sum is 30.

The square root of 1117389 is about 1057.0662230911. The cubic root of 1117389 is about 103.7691192325.

The spelling of 1117389 in words is "one million, one hundred seventeen thousand, three hundred eighty-nine".