116505769 has 4 divisors (see below), whose sum is σ = 117344080. Its totient is φ = 115667460.

The previous prime is 116505761. The next prime is 116505793. The reversal of 116505769 is 967505611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 967505611 = 499 ⋅1938889.

It is not a de Polignac number, because 116505769 - 2³ = 116505761 is a prime.

It is a super-3 number, since 3×116505769³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116505761) 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, 418947 + ... + 419224.

It is an arithmetic number, because the mean of its divisors is an integer number (29336020).

Almost surely, 2^116505769 is an apocalyptic number.

It is an amenable number.

116505769 is a deficient number, since it is larger than the sum of its proper divisors (838311).

116505769 is an equidigital number, since it uses as much as digits as its factorization.

116505769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838310.

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 116505769 is about 10793.7838129175. The cubic root of 116505769 is about 488.4076715784.

The spelling of 116505769 in words is "one hundred sixteen million, five hundred five thousand, seven hundred sixty-nine".