116478385 has 4 divisors (see below), whose sum is σ = 139774068. Its totient is φ = 93182704.

The previous prime is 116478319. The next prime is 116478389. The reversal of 116478385 is 583874611.

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 13719616 + 102758769 = 3704^2 + 10137^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116478385 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116478389) 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, 11647834 + ... + 11647843.

It is an arithmetic number, because the mean of its divisors is an integer number (34943517).

Almost surely, 2^116478385 is an apocalyptic number.

It is an amenable number.

116478385 is a deficient number, since it is larger than the sum of its proper divisors (23295683).

116478385 is an equidigital number, since it uses as much as digits as its factorization.

116478385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23295682.

The product of its digits is 161280, while the sum is 43.

The square root of 116478385 is about 10792.5152304734. The cubic root of 116478385 is about 488.3694027906.

The spelling of 116478385 in words is "one hundred sixteen million, four hundred seventy-eight thousand, three hundred eighty-five".