117920938 has 8 divisors (see below), whose sum is σ = 179521632. Its totient is φ = 58080396.

The previous prime is 117920911. The next prime is 117920939. The reversal of 117920938 is 839029711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 117920938.

It is not an unprimeable number, because it can be changed into a prime (117920939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439870 + ... + 440137.

It is an arithmetic number, because the mean of its divisors is an integer number (22440204).

Almost surely, 2^117920938 is an apocalyptic number.

117920938 is a deficient number, since it is larger than the sum of its proper divisors (61600694).

117920938 is an equidigital number, since it uses as much as digits as its factorization.

117920938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880076.

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

The square root of 117920938 is about 10859.1407579053. The cubic root of 117920938 is about 490.3772438516.

The spelling of 117920938 in words is "one hundred seventeen million, nine hundred twenty thousand, nine hundred thirty-eight".