116569729 has 4 divisors (see below), whose sum is σ = 119049984. Its totient is φ = 114089476.

The previous prime is 116569699. The next prime is 116569751. The reversal of 116569729 is 927965611.

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.

It is a cyclic number.

It is not a de Polignac number, because 116569729 - 2¹¹ = 116567681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116563729) 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, 1240057 + ... + 1240150.

It is an arithmetic number, because the mean of its divisors is an integer number (29762496).

Almost surely, 2^116569729 is an apocalyptic number.

It is an amenable number.

116569729 is a deficient number, since it is larger than the sum of its proper divisors (2480255).

116569729 is an equidigital number, since it uses as much as digits as its factorization.

116569729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480254.

The product of its digits is 204120, while the sum is 46.

The square root of 116569729 is about 10796.7462228210. The cubic root of 116569729 is about 488.4970315022.

The spelling of 116569729 in words is "one hundred sixteen million, five hundred sixty-nine thousand, seven hundred twenty-nine".