979118785 has 4 divisors (see below), whose sum is σ = 1174942548. Its totient is φ = 783295024.

The previous prime is 979118779. The next prime is 979118797. The reversal of 979118785 is 587811979.

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 621455041 + 357663744 = 24929^2 + 18912^2 .

It is a cyclic number.

It is not a de Polignac number, because 979118785 - 2²³ = 970730177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97911874 + ... + 97911883.

It is an arithmetic number, because the mean of its divisors is an integer number (293735637).

Almost surely, 2^979118785 is an apocalyptic number.

It is an amenable number.

979118785 is a deficient number, since it is larger than the sum of its proper divisors (195823763).

979118785 is a wasteful number, since it uses less digits than its factorization.

979118785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195823762.

The product of its digits is 1270080, while the sum is 55.

The square root of 979118785 is about 31290.8738292813. The cubic root of 979118785 is about 992.9905777960.

The spelling of 979118785 in words is "nine hundred seventy-nine million, one hundred eighteen thousand, seven hundred eighty-five".