117005839 has 4 divisors (see below), whose sum is σ = 117325024. Its totient is φ = 116686656.

The previous prime is 117005813. The next prime is 117005851. The reversal of 117005839 is 938500711.

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 117005839 - 2⁹ = 117005327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117005879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159042 + ... + 159775.

It is an arithmetic number, because the mean of its divisors is an integer number (29331256).

Almost surely, 2^117005839 is an apocalyptic number.

117005839 is a deficient number, since it is larger than the sum of its proper divisors (319185).

117005839 is an equidigital number, since it uses as much as digits as its factorization.

117005839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319184.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 117005839 is about 10816.9237308950. The cubic root of 117005839 is about 489.1054608098.

The spelling of 117005839 in words is "one hundred seventeen million, five thousand, eight hundred thirty-nine".