616396771 has 2 divisors, whose sum is σ = 616396772. Its totient is φ = 616396770.

The previous prime is 616396763. The next prime is 616396811. The reversal of 616396771 is 177693616.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 616396771 - 2³ = 616396763 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (616396721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308198385 + 308198386.

It is an arithmetic number, because the mean of its divisors is an integer number (308198386).

Almost surely, 2^616396771 is an apocalyptic number.

616396771 is a deficient number, since it is larger than the sum of its proper divisors (1).

616396771 is an equidigital number, since it uses as much as digits as its factorization.

616396771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768, while the sum is 46.

The square root of 616396771 is about 24827.3391848583. The cubic root of 616396771 is about 851.0468168387.

The spelling of 616396771 in words is "six hundred sixteen million, three hundred ninety-six thousand, seven hundred seventy-one".