116988385 has 4 divisors (see below), whose sum is σ = 140386068. Its totient is φ = 93590704.

The previous prime is 116988383. The next prime is 116988397. The reversal of 116988385 is 583889611.

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 37564641 + 79423744 = 6129^2 + 8912^2 .

It is a cyclic number.

It is not a de Polignac number, because 116988385 - 2¹ = 116988383 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116988383) 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, 11698834 + ... + 11698843.

It is an arithmetic number, because the mean of its divisors is an integer number (35096517).

Almost surely, 2^116988385 is an apocalyptic number.

It is an amenable number.

116988385 is a deficient number, since it is larger than the sum of its proper divisors (23397683).

116988385 is an equidigital number, since it uses as much as digits as its factorization.

116988385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23397682.

The product of its digits is 414720, while the sum is 49.

The square root of 116988385 is about 10816.1169095013. The cubic root of 116988385 is about 489.0811393135.

The spelling of 116988385 in words is "one hundred sixteen million, nine hundred eighty-eight thousand, three hundred eighty-five".