116986309 has 12 divisors (see below), whose sum is σ = 128978080. Its totient is φ = 106029000.

The previous prime is 116986297. The next prime is 116986313. The reversal of 116986309 is 903689611.

It is not a de Polignac number, because 116986309 - 2¹¹ = 116984261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116986409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44584 + ... + 47134.

Almost surely, 2^116986309 is an apocalyptic number.

It is an amenable number.

116986309 is a deficient number, since it is larger than the sum of its proper divisors (11991771).

116986309 is a wasteful number, since it uses less digits than its factorization.

116986309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2952 (or 2941 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 116986309 is about 10816.0209411780. The cubic root of 116986309 is about 489.0782463242.

It can be divided in two parts, 1169 and 86309, that added together give a palindrome (87478).

The spelling of 116986309 in words is "one hundred sixteen million, nine hundred eighty-six thousand, three hundred nine".