116609779 has 8 divisors (see below), whose sum is σ = 136996272. Its totient is φ = 97854240.

The previous prime is 116609723. The next prime is 116609807. The reversal of 116609779 is 977906611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 116609779 - 2⁹ = 116609267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116609179) 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 7 ways as a sum of consecutive naturals, for example, 407584 + ... + 407869.

It is an arithmetic number, because the mean of its divisors is an integer number (17124534).

Almost surely, 2^116609779 is an apocalyptic number.

116609779 is a deficient number, since it is larger than the sum of its proper divisors (20386493).

116609779 is a wasteful number, since it uses less digits than its factorization.

116609779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815477.

The product of its (nonzero) digits is 142884, while the sum is 46.

The square root of 116609779 is about 10798.6007889911. The cubic root of 116609779 is about 488.5529695979.

The spelling of 116609779 in words is "one hundred sixteen million, six hundred nine thousand, seven hundred seventy-nine".