117238479 has 8 divisors (see below), whose sum is σ = 156627120. Its totient is φ = 78004416.

The previous prime is 117238469. The next prime is 117238483. The reversal of 117238479 is 974832711.

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

It is not a de Polignac number, because 117238479 - 2⁵ = 117238447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117238479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117238439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36862 + ... + 39915.

It is an arithmetic number, because the mean of its divisors is an integer number (19578390).

Almost surely, 2^117238479 is an apocalyptic number.

117238479 is a deficient number, since it is larger than the sum of its proper divisors (39388641).

117238479 is an equidigital number, since it uses as much as digits as its factorization.

117238479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77289.

The product of its digits is 84672, while the sum is 42.

The square root of 117238479 is about 10827.6719104339. The cubic root of 117238479 is about 489.4294052277.

It can be divided in two parts, 11723 and 8479, that added together give a palindrome (20202).

The spelling of 117238479 in words is "one hundred seventeen million, two hundred thirty-eight thousand, four hundred seventy-nine".