117085620 has 48 divisors (see below), whose sum is σ = 330865920. Its totient is φ = 30934656.

The previous prime is 117085597. The next prime is 117085621. The reversal of 117085620 is 26580711.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117085621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2412 + ... + 15491.

It is an arithmetic number, because the mean of its divisors is an integer number (6893040).

Almost surely, 2^117085620 is an apocalyptic number.

117085620 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 117085620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165432960).

117085620 is an abundant number, since it is smaller than the sum of its proper divisors (213780300).

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

117085620 is a wasteful number, since it uses less digits than its factorization.

117085620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18024 (or 18022 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 117085620 is about 10820.6108884850. The cubic root of 117085620 is about 489.2166018648.

The spelling of 117085620 in words is "one hundred seventeen million, eighty-five thousand, six hundred twenty".