116089861 has 4 divisors (see below), whose sum is σ = 116187724. Its totient is φ = 115992000.

The previous prime is 116089781. The next prime is 116089877. The reversal of 116089861 is 168980611.

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 40068900 + 76020961 = 6330^2 + 8719^2 .

It is a cyclic number.

It is not a de Polignac number, because 116089861 - 2⁷ = 116089733 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 (116089261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47130 + ... + 49531.

It is an arithmetic number, because the mean of its divisors is an integer number (29046931).

Almost surely, 2^116089861 is an apocalyptic number.

It is an amenable number.

116089861 is a deficient number, since it is larger than the sum of its proper divisors (97863).

116089861 is an equidigital number, since it uses as much as digits as its factorization.

116089861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97862.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 116089861 is about 10774.5004988630. The cubic root of 116089861 is about 487.8257980862.

The spelling of 116089861 in words is "one hundred sixteen million, eighty-nine thousand, eight hundred sixty-one".