117087720 has 32 divisors (see below), whose sum is σ = 351263520. Its totient is φ = 31223360.

The previous prime is 117087701. The next prime is 117087727. The reversal of 117087720 is 27780711.

It is not an unprimeable number, because it can be changed into a prime (117087727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487746 + ... + 487985.

It is an arithmetic number, because the mean of its divisors is an integer number (10976985).

Almost surely, 2^117087720 is an apocalyptic number.

117087720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117087720 is an abundant number, since it is smaller than the sum of its proper divisors (234175800).

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

117087720 is a wasteful number, since it uses less digits than its factorization.

117087720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975745 (or 975741 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 33.

The square root of 117087720 is about 10820.7079250851. The cubic root of 117087720 is about 489.2195266439.

The spelling of 117087720 in words is "one hundred seventeen million, eighty-seven thousand, seven hundred twenty".