117980 has 24 divisors (see below), whose sum is σ = 263088. Its totient is φ = 44288.

The previous prime is 117979. The next prime is 117989. The reversal of 117980 is 89711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117989) 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, 167 + ... + 513.

It is an arithmetic number, because the mean of its divisors is an integer number (10962).

2¹¹⁷⁹⁸⁰ is an apocalyptic number.

117980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131544).

117980 is an abundant number, since it is smaller than the sum of its proper divisors (145108).

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

117980 is a wasteful number, since it uses less digits than its factorization.

117980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 117980 is about 343.4821683872. The cubic root of 117980 is about 49.0459100467.

The spelling of 117980 in words is "one hundred seventeen thousand, nine hundred eighty".