116888861 has 4 divisors (see below), whose sum is σ = 117673500. Its totient is φ = 116104224.

The previous prime is 116888857. The next prime is 116888867. The reversal of 116888861 is 168888611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 168888611 = 1373 ⋅123007.

It can be written as a sum of positive squares in 2 ways, for example, as 12460900 + 104427961 = 3530^2 + 10219^2 .

It is a cyclic number.

It is not a de Polignac number, because 116888861 - 2² = 116888857 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 (116888867) 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, 392096 + ... + 392393.

It is an arithmetic number, because the mean of its divisors is an integer number (29418375).

Almost surely, 2^116888861 is an apocalyptic number.

It is an amenable number.

116888861 is a deficient number, since it is larger than the sum of its proper divisors (784639).

116888861 is an equidigital number, since it uses as much as digits as its factorization.

116888861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784638.

The product of its digits is 147456, while the sum is 47.

The square root of 116888861 is about 10811.5152037076. The cubic root of 116888861 is about 488.9424100975.

The spelling of 116888861 in words is "one hundred sixteen million, eight hundred eighty-eight thousand, eight hundred sixty-one".