116704809 has 27 divisors (see below), whose sum is σ = 183199653. Its totient is φ = 71559072.

The previous prime is 116704799. The next prime is 116704811. The reversal of 116704809 is 908407611.

The square root of 116704809 is 10803.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 53978409 + 62726400 = 7347^2 + 7920^2 .

It is not a de Polignac number, because 116704809 - 2⁷ = 116704681 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (116704849) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 421179 + ... + 421455.

Almost surely, 2^116704809 is an apocalyptic number.

116704809 is the 10803-rd square number.

116704809 is the 5402-nd centered octagonal number.

It is an amenable number.

116704809 is a deficient number, since it is larger than the sum of its proper divisors (66494844).

116704809 is an equidigital number, since it uses as much as digits as its factorization.

116704809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The cubic root of 116704809 is about 488.6856473859.

Multiplying 116704809 by its sum of digits (36), we get a square (4201373124 = 64818²).

The spelling of 116704809 in words is "one hundred sixteen million, seven hundred four thousand, eight hundred nine".