616920593 has 2 divisors, whose sum is σ = 616920594. Its totient is φ = 616920592.

The previous prime is 616920571. The next prime is 616920653. The reversal of 616920593 is 395029616.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320839744 + 296080849 = 17912^2 + 17207^2 .

It is a cyclic number.

It is not a de Polignac number, because 616920593 - 2⁶ = 616920529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 616920593.

It is not a weakly prime, because it can be changed into another prime (616920793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308460296 + 308460297.

It is an arithmetic number, because the mean of its divisors is an integer number (308460297).

Almost surely, 2^616920593 is an apocalyptic number.

It is an amenable number.

616920593 is a deficient number, since it is larger than the sum of its proper divisors (1).

616920593 is an equidigital number, since it uses as much as digits as its factorization.

616920593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 616920593 is about 24837.8862425932. The cubic root of 616920593 is about 851.2878254687.

It can be divided in two parts, 6169 and 20593, that added together give a palindrome (26762).

The spelling of 616920593 in words is "six hundred sixteen million, nine hundred twenty thousand, five hundred ninety-three".