616763443 has 2 divisors, whose sum is σ = 616763444. Its totient is φ = 616763442.

The previous prime is 616763429. The next prime is 616763449. The reversal of 616763443 is 344367616.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616763443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 616763396 and 616763405.

It is not a weakly prime, because it can be changed into another prime (616763449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308381721 + 308381722.

It is an arithmetic number, because the mean of its divisors is an integer number (308381722).

Almost surely, 2^616763443 is an apocalyptic number.

616763443 is a deficient number, since it is larger than the sum of its proper divisors (1).

616763443 is an equidigital number, since it uses as much as digits as its factorization.

616763443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 40.

The square root of 616763443 is about 24834.7225271393. The cubic root of 616763443 is about 851.2155356449.

The spelling of 616763443 in words is "six hundred sixteen million, seven hundred sixty-three thousand, four hundred forty-three".