117730 has 16 divisors (see below), whose sum is σ = 216504. Its totient is φ = 46080.

The previous prime is 117727. The next prime is 117731. The reversal of 117730 is 37711.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 45369 + 72361 = 213^2 + 269^2 .

It is a junction number, because it is equal to n+sod(n) for n = 117698 and 117707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117731) 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, 514 + ... + 706.

2¹¹⁷⁷³⁰ is an apocalyptic number.

117730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117730 is a deficient number, since it is larger than the sum of its proper divisors (98774).

117730 is a wasteful number, since it uses less digits than its factorization.

117730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261.

The product of its (nonzero) digits is 147, while the sum is 19.

The square root of 117730 is about 343.1180554853. The cubic root of 117730 is about 49.0112427347.

Subtracting from 117730 its sum of digits (19), we obtain a palindrome (117711).

The spelling of 117730 in words is "one hundred seventeen thousand, seven hundred thirty".