980686791 has 16 divisors (see below), whose sum is σ = 1660422400. Its totient is φ = 560392344.

The previous prime is 980686787. The next prime is 980686801. The reversal of 980686791 is 197686089.

It is not a de Polignac number, because 980686791 - 2² = 980686787 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980686711) 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 15 ways as a sum of consecutive naturals, for example, 2594221 + ... + 2594598.

It is an arithmetic number, because the mean of its divisors is an integer number (103776400).

Almost surely, 2^980686791 is an apocalyptic number.

980686791 is a deficient number, since it is larger than the sum of its proper divisors (679735609).

980686791 is a wasteful number, since it uses less digits than its factorization.

980686791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5188835 (or 5188829 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 980686791 is about 31315.9191306913. The cubic root of 980686791 is about 993.5203687290.

The spelling of 980686791 in words is "nine hundred eighty million, six hundred eighty-six thousand, seven hundred ninety-one".