117729589 has 8 divisors (see below), whose sum is σ = 124088760. Its totient is φ = 111523776.

The previous prime is 117729581. The next prime is 117729593. The reversal of 117729589 is 985927711.

It can be written as a sum of positive squares in 4 ways, for example, as 57123364 + 60606225 = 7558^2 + 7785^2 .

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 117729589 - 2³ = 117729581 is a prime.

It is a super-2 number, since 2×117729589² = 27720512252217842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117729581) 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, 36762 + ... + 39835.

It is an arithmetic number, because the mean of its divisors is an integer number (15511095).

Almost surely, 2^117729589 is an apocalyptic number.

It is an amenable number.

117729589 is a deficient number, since it is larger than the sum of its proper divisors (6359171).

117729589 is an equidigital number, since it uses as much as digits as its factorization.

117729589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76679.

The product of its digits is 317520, while the sum is 49.

The square root of 117729589 is about 10850.3266771098. The cubic root of 117729589 is about 490.1118570123. Note that the first 3 decimals are identical.

The spelling of 117729589 in words is "one hundred seventeen million, seven hundred twenty-nine thousand, five hundred eighty-nine".