117921496 has 64 divisors (see below), whose sum is σ = 281594880. Its totient is φ = 44954880.

The previous prime is 117921481. The next prime is 117921509. The reversal of 117921496 is 694129711.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26916 + ... + 30988.

It is an arithmetic number, because the mean of its divisors is an integer number (4399920).

Almost surely, 2^117921496 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 117921496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140797440).

117921496 is an abundant number, since it is smaller than the sum of its proper divisors (163673384).

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

117921496 is a wasteful number, since it uses less digits than its factorization.

117921496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4144 (or 4140 counting only the distinct ones).

The product of its digits is 27216, while the sum is 40.

The square root of 117921496 is about 10859.1664505154. The cubic root of 117921496 is about 490.3780173362.

The spelling of 117921496 in words is "one hundred seventeen million, nine hundred twenty-one thousand, four hundred ninety-six".