117887792 has 120 divisors (see below), whose sum is σ = 279263376. Its totient is φ = 47616000.

The previous prime is 117887779. The next prime is 117887821. The reversal of 117887792 is 297788711.

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 117887792.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2875292 + ... + 2875332.

Almost surely, 2^117887792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117887792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139631688).

117887792 is an abundant number, since it is smaller than the sum of its proper divisors (161375584).

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

117887792 is a wasteful number, since it uses less digits than its factorization.

117887792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 102 counting only the distinct ones).

The product of its digits is 395136, while the sum is 50.

The square root of 117887792 is about 10857.6144709600. The cubic root of 117887792 is about 490.3312933824.

The spelling of 117887792 in words is "one hundred seventeen million, eight hundred eighty-seven thousand, seven hundred ninety-two".