116783309 has 4 divisors (see below), whose sum is σ = 117227616. Its totient is φ = 116339004.

The previous prime is 116783281. The next prime is 116783311. The reversal of 116783309 is 903387611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 116783309 - 2¹⁶ = 116717773 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 (116783389) 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, 221759 + ... + 222284.

It is an arithmetic number, because the mean of its divisors is an integer number (29306904).

Almost surely, 2^116783309 is an apocalyptic number.

It is an amenable number.

116783309 is a deficient number, since it is larger than the sum of its proper divisors (444307).

116783309 is an equidigital number, since it uses as much as digits as its factorization.

116783309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444306.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 116783309 is about 10806.6326392637. The cubic root of 116783309 is about 488.7951922158.

The spelling of 116783309 in words is "one hundred sixteen million, seven hundred eighty-three thousand, three hundred nine".