4999999817 has 2 divisors, whose sum is σ = 4999999818. Its totient is φ = 4999999816.

The previous prime is 4999999811. The next prime is 4999999859. The reversal of 4999999817 is 7189999994.

4999999817 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4579093561 + 420906256 = 67669^2 + 20516^2 .

It is a cyclic number.

It is not a de Polignac number, because 4999999817 - 2⁴ = 4999999801 is a prime.

It is not a weakly prime, because it can be changed into another prime (4999999811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2499999908 + 2499999909.

It is an arithmetic number, because the mean of its divisors is an integer number (2499999909).

Almost surely, 2^4999999817 is an apocalyptic number.

It is an amenable number.

4999999817 is a deficient number, since it is larger than the sum of its proper divisors (1).

4999999817 is an equidigital number, since it uses as much as digits as its factorization.

4999999817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 119042784, while the sum is 74.

The square root of 4999999817 is about 70710.6768246493. The cubic root of 4999999817 is about 1709.9759258150.

The spelling of 4999999817 in words is "four billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, eight hundred seventeen".