116782361 has 4 divisors (see below), whose sum is σ = 117938724. Its totient is φ = 115626000.

The previous prime is 116782349. The next prime is 116782403. The reversal of 116782361 is 163287611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 163287611 = 9343 ⋅17477.

It can be written as a sum of positive squares in 2 ways, for example, as 94692361 + 22090000 = 9731^2 + 4700^2 .

It is a cyclic number.

It is not a de Polignac number, because 116782361 - 2²² = 112588057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116782321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578030 + ... + 578231.

It is an arithmetic number, because the mean of its divisors is an integer number (29484681).

Almost surely, 2^116782361 is an apocalyptic number.

It is an amenable number.

116782361 is a deficient number, since it is larger than the sum of its proper divisors (1156363).

116782361 is a wasteful number, since it uses less digits than its factorization.

116782361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156362.

The product of its digits is 12096, while the sum is 35.

The square root of 116782361 is about 10806.5887772229. The cubic root of 116782361 is about 488.7938695978.

The spelling of 116782361 in words is "one hundred sixteen million, seven hundred eighty-two thousand, three hundred sixty-one".