117793789 has 4 divisors (see below), whose sum is σ = 117880956. Its totient is φ = 117706624.

The previous prime is 117793783. The next prime is 117793801. The reversal of 117793789 is 987397711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 987397711 = 41 ⋅24082871.

It can be written as a sum of positive squares in 2 ways, for example, as 115734564 + 2059225 = 10758^2 + 1435^2 .

It is a cyclic number.

It is not a de Polignac number, because 117793789 - 2²⁵ = 84239357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117793783) 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, 41524 + ... + 44269.

It is an arithmetic number, because the mean of its divisors is an integer number (29470239).

Almost surely, 2^117793789 is an apocalyptic number.

It is an amenable number.

117793789 is a deficient number, since it is larger than the sum of its proper divisors (87167).

117793789 is an equidigital number, since it uses as much as digits as its factorization.

117793789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87166.

The product of its digits is 666792, while the sum is 52.

The square root of 117793789 is about 10853.2847101695. The cubic root of 117793789 is about 490.2009296737.

The spelling of 117793789 in words is "one hundred seventeen million, seven hundred ninety-three thousand, seven hundred eighty-nine".