117912216 has 16 divisors (see below), whose sum is σ = 294780600. Its totient is φ = 39304064.

The previous prime is 117912209. The next prime is 117912217. The reversal of 117912216 is 612219711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117912217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2456481 + ... + 2456528.

Almost surely, 2^117912216 is an apocalyptic number.

It is an amenable number.

117912216 is an abundant number, since it is smaller than the sum of its proper divisors (176868384).

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

117912216 is a wasteful number, since it uses less digits than its factorization.

117912216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4913018 (or 4913014 counting only the distinct ones).

The product of its digits is 1512, while the sum is 30.

The square root of 117912216 is about 10858.7391533271. The cubic root of 117912216 is about 490.3651533333.

The spelling of 117912216 in words is "one hundred seventeen million, nine hundred twelve thousand, two hundred sixteen".