117928613 has 8 divisors (see below), whose sum is σ = 134243136. Its totient is φ = 102546400.

The previous prime is 117928607. The next prime is 117928621. The reversal of 117928613 is 316829711.

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

It is not a de Polignac number, because 117928613 - 2⁸ = 117928357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117928633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232808 + ... + 233313.

It is an arithmetic number, because the mean of its divisors is an integer number (16780392).

Almost surely, 2^117928613 is an apocalyptic number.

It is an amenable number.

117928613 is a deficient number, since it is larger than the sum of its proper divisors (16314523).

117928613 is a wasteful number, since it uses less digits than its factorization.

117928613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466155.

The product of its digits is 18144, while the sum is 38.

The square root of 117928613 is about 10859.4941410731. The cubic root of 117928613 is about 490.3878825156.

It can be divided in two parts, 1179 and 28613, that added together give a palindrome (29792).

The spelling of 117928613 in words is "one hundred seventeen million, nine hundred twenty-eight thousand, six hundred thirteen".