116505789 has 8 divisors (see below), whose sum is σ = 160697760. Its totient is φ = 74992176.

The previous prime is 116505761. The next prime is 116505793. The reversal of 116505789 is 987505611.

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

It is not a de Polignac number, because 116505789 - 2¹⁹ = 115981501 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 116505789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116505749) 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, 669487 + ... + 669660.

It is an arithmetic number, because the mean of its divisors is an integer number (20087220).

Almost surely, 2^116505789 is an apocalyptic number.

It is an amenable number.

116505789 is a deficient number, since it is larger than the sum of its proper divisors (44191971).

116505789 is a wasteful number, since it uses less digits than its factorization.

116505789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339179.

The product of its (nonzero) digits is 75600, while the sum is 42.

The square root of 116505789 is about 10793.7847393766. The cubic root of 116505789 is about 488.4076995260.

The spelling of 116505789 in words is "one hundred sixteen million, five hundred five thousand, seven hundred eighty-nine".