117928039 has 4 divisors (see below), whose sum is σ = 118058400. Its totient is φ = 117797680.

The previous prime is 117928037. The next prime is 117928049. The reversal of 117928039 is 930829711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 117928039 - 2¹ = 117928037 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117927992 and 117928010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117928033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63814 + ... + 65635.

It is an arithmetic number, because the mean of its divisors is an integer number (29514600).

Almost surely, 2^117928039 is an apocalyptic number.

117928039 is a deficient number, since it is larger than the sum of its proper divisors (130361).

117928039 is an equidigital number, since it uses as much as digits as its factorization.

117928039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130360.

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

The square root of 117928039 is about 10859.4677125539. The cubic root of 117928039 is about 490.3870868842.

The spelling of 117928039 in words is "one hundred seventeen million, nine hundred twenty-eight thousand, thirty-nine".