117709212 has 24 divisors (see below), whose sum is σ = 275892736. Its totient is φ = 39059568.

The previous prime is 117709169. The next prime is 117709213. The reversal of 117709212 is 212907711.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 117709212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117709213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19318 + ... + 24669.

Almost surely, 2^117709212 is an apocalyptic number.

117709212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

117709212 is an abundant number, since it is smaller than the sum of its proper divisors (158183524).

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

117709212 is a wasteful number, since it uses less digits than its factorization.

117709212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44217 (or 44215 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 30.

The square root of 117709212 is about 10849.3876324888. The cubic root of 117709212 is about 490.0835786907.

The spelling of 117709212 in words is "one hundred seventeen million, seven hundred nine thousand, two hundred twelve".