116389685 has 4 divisors (see below), whose sum is σ = 139667628. Its totient is φ = 93111744.

The previous prime is 116389639. The next prime is 116389703. The reversal of 116389685 is 586983611.

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 73119601 + 43270084 = 8551^2 + 6578^2 .

It is a cyclic number.

It is not a de Polignac number, because 116389685 - 2²⁶ = 49280821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11638964 + ... + 11638973.

It is an arithmetic number, because the mean of its divisors is an integer number (34916907).

Almost surely, 2^116389685 is an apocalyptic number.

It is an amenable number.

116389685 is a deficient number, since it is larger than the sum of its proper divisors (23277943).

116389685 is an equidigital number, since it uses as much as digits as its factorization.

116389685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23277942.

The product of its digits is 311040, while the sum is 47.

The square root of 116389685 is about 10788.4051184594. The cubic root of 116389685 is about 488.2454044867.

The spelling of 116389685 in words is "one hundred sixteen million, three hundred eighty-nine thousand, six hundred eighty-five".