116917805 has 4 divisors (see below), whose sum is σ = 140301372. Its totient is φ = 93534240.

The previous prime is 116917799. The next prime is 116917807. The reversal of 116917805 is 508719611.

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 17197609 + 99720196 = 4147^2 + 9986^2 .

It is not a de Polignac number, because 116917805 - 2⁶ = 116917741 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116917807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11691776 + ... + 11691785.

It is an arithmetic number, because the mean of its divisors is an integer number (35075343).

Almost surely, 2^116917805 is an apocalyptic number.

It is an amenable number.

116917805 is a deficient number, since it is larger than the sum of its proper divisors (23383567).

116917805 is an equidigital number, since it uses as much as digits as its factorization.

116917805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23383566.

The product of its (nonzero) digits is 15120, while the sum is 38.

The square root of 116917805 is about 10812.8536936370. The cubic root of 116917805 is about 488.9827640458.

The spelling of 116917805 in words is "one hundred sixteen million, nine hundred seventeen thousand, eight hundred five".