117921298 has 16 divisors (see below), whose sum is σ = 194083776. Its totient is φ = 53289040.

The previous prime is 117921247. The next prime is 117921311. The reversal of 117921298 is 892129711.

It is a self number, because there is not a number n which added to its sum of digits gives 117921298.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11686 + ... + 19297.

It is an arithmetic number, because the mean of its divisors is an integer number (12130236).

Almost surely, 2^117921298 is an apocalyptic number.

117921298 is a deficient number, since it is larger than the sum of its proper divisors (76162478).

117921298 is a wasteful number, since it uses less digits than its factorization.

117921298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31169.

The product of its digits is 18144, while the sum is 40.

The square root of 117921298 is about 10859.1573337898. The cubic root of 117921298 is about 490.3777428742.

The spelling of 117921298 in words is "one hundred seventeen million, nine hundred twenty-one thousand, two hundred ninety-eight".