117720086 has 16 divisors (see below), whose sum is σ = 202772160. Its totient is φ = 50692680.

The previous prime is 117720037. The next prime is 117720103. The reversal of 117720086 is 680027711.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140396 + ... + 141231.

It is an arithmetic number, because the mean of its divisors is an integer number (12673260).

Almost surely, 2^117720086 is an apocalyptic number.

117720086 is a deficient number, since it is larger than the sum of its proper divisors (85052074).

117720086 is a wasteful number, since it uses less digits than its factorization.

117720086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281659.

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 117720086 is about 10849.8887551901. Note that the first 3 decimals coincide. The cubic root of 117720086 is about 490.0986695649.

Adding to 117720086 its reverse (680027711), we get a palindrome (797747797).

The spelling of 117720086 in words is "one hundred seventeen million, seven hundred twenty thousand, eighty-six".