117889513 has 8 divisors (see below), whose sum is σ = 140588928. Its totient is φ = 96654624.

The previous prime is 117889507. The next prime is 117889517. The reversal of 117889513 is 315988711.

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

It is a cyclic number.

It is not a de Polignac number, because 117889513 - 2²¹ = 115792361 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117889513.

It is not an unprimeable number, because it can be changed into a prime (117889517) 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, 365956 + ... + 366277.

It is an arithmetic number, because the mean of its divisors is an integer number (17573616).

Almost surely, 2^117889513 is an apocalyptic number.

It is an amenable number.

117889513 is a deficient number, since it is larger than the sum of its proper divisors (22699415).

117889513 is an equidigital number, since it uses as much as digits as its factorization.

117889513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732263.

The product of its digits is 60480, while the sum is 43.

The square root of 117889513 is about 10857.6937238071. The cubic root of 117889513 is about 490.3336794255. Note that the first 3 decimals are identical.

The spelling of 117889513 in words is "one hundred seventeen million, eight hundred eighty-nine thousand, five hundred thirteen".