116321617 has 4 divisors (see below), whose sum is σ = 116348580. Its totient is φ = 116294656.

The previous prime is 116321609. The next prime is 116321651. The reversal of 116321617 is 716123611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54997056 + 61324561 = 7416^2 + 7831^2 .

It is a 3-Lehmer number, since φ(116321617) divides (116321617-1)³.

It is a cyclic number.

It is not a de Polignac number, because 116321617 - 2³ = 116321609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116321717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5392 + ... + 16177.

It is an arithmetic number, because the mean of its divisors is an integer number (29087145).

It is a Poulet number, since it divides 2^116321616-1.

Almost surely, 2^116321617 is an apocalyptic number.

116321617 is the 5393-rd decagonal number.

It is an amenable number.

116321617 is a deficient number, since it is larger than the sum of its proper divisors (26963).

116321617 is an equidigital number, since it uses as much as digits as its factorization.

116321617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26962.

The product of its digits is 1512, while the sum is 28.

The square root of 116321617 is about 10785.2499739227. The cubic root of 116321617 is about 488.1502059903.

The spelling of 116321617 in words is "one hundred sixteen million, three hundred twenty-one thousand, six hundred seventeen".