117798100 has 144 divisors (see below), whose sum is σ = 326229120. Its totient is φ = 35942400.

The previous prime is 117798089. The next prime is 117798101. The reversal of 117798100 is 1897711.

It is a super-2 number, since 2×117798100² = 27752784727220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117798101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 225840 + ... + 226360.

It is an arithmetic number, because the mean of its divisors is an integer number (2265480).

Almost surely, 2^117798100 is an apocalyptic number.

117798100 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 117798100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163114560).

117798100 is an abundant number, since it is smaller than the sum of its proper divisors (208431020).

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

117798100 is a wasteful number, since it uses less digits than its factorization.

117798100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578 (or 571 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 34.

The square root of 117798100 is about 10853.4833118221. The cubic root of 117798100 is about 490.2069097016.

The spelling of 117798100 in words is "one hundred seventeen million, seven hundred ninety-eight thousand, one hundred".