117207216 has 200 divisors, whose sum is σ = 395949360. Its totient is φ = 33191424.

The previous prime is 117207133. The next prime is 117207227. The reversal of 117207216 is 612702711.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 117207216.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1037176 + ... + 1037288.

Almost surely, 2^117207216 is an apocalyptic number.

117207216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117207216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197974680).

117207216 is an abundant number, since it is smaller than the sum of its proper divisors (278742144).

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

117207216 is an equidigital number, since it uses as much as digits as its factorization.

117207216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The square root of 117207216 is about 10826.2281520389. The cubic root of 117207216 is about 489.3858973513.

Adding to 117207216 its reverse (612702711), we get a palindrome (729909927).

The spelling of 117207216 in words is "one hundred seventeen million, two hundred seven thousand, two hundred sixteen".