996784771 has 2 divisors, whose sum is σ = 996784772. Its totient is φ = 996784770.

The previous prime is 996784759. The next prime is 996784793. The reversal of 996784771 is 177487699.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 996784771 - 2²¹ = 994687619 is a prime.

It is not a weakly prime, because it can be changed into another prime (996784471) 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 as a sum of consecutive naturals, namely, 498392385 + 498392386.

It is an arithmetic number, because the mean of its divisors is an integer number (498392386).

Almost surely, 2^996784771 is an apocalyptic number.

996784771 is a deficient number, since it is larger than the sum of its proper divisors (1).

996784771 is an equidigital number, since it uses as much as digits as its factorization.

996784771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5334336, while the sum is 58.

The square root of 996784771 is about 31571.8984383264. The cubic root of 996784771 is about 998.9271063108.

The spelling of 996784771 in words is "nine hundred ninety-six million, seven hundred eighty-four thousand, seven hundred seventy-one".