117889506 has 56 divisors (see below), whose sum is σ = 303032064. Its totient is φ = 33679800.

The previous prime is 117889483. The next prime is 117889507. The reversal of 117889506 is 605988711.

It is not an unprimeable number, because it can be changed into a prime (117889507) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 4431 + ... + 15981.

Almost surely, 2^117889506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117889506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151516032).

117889506 is an abundant number, since it is smaller than the sum of its proper divisors (185142558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117889506 is an equidigital number, since it uses as much as digits as its factorization.

117889506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11578 (or 11563 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 45.

The square root of 117889506 is about 10857.6934014550. The cubic root of 117889506 is about 490.3336697205. Note that the first 3 decimals are identical.

The spelling of 117889506 in words is "one hundred seventeen million, eight hundred eighty-nine thousand, five hundred six".