998756713 has 2 divisors, whose sum is σ = 998756714. Its totient is φ = 998756712.

The previous prime is 998756711. The next prime is 998756753. The reversal of 998756713 is 317657899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 931958784 + 66797929 = 30528^2 + 8173^2 .

It is a cyclic number.

It is not a de Polignac number, because 998756713 - 2¹ = 998756711 is a prime.

Together with 998756711, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (998756711) 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, 499378356 + 499378357.

It is an arithmetic number, because the mean of its divisors is an integer number (499378357).

Almost surely, 2^998756713 is an apocalyptic number.

It is an amenable number.

998756713 is a deficient number, since it is larger than the sum of its proper divisors (1).

998756713 is an equidigital number, since it uses as much as digits as its factorization.

998756713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2857680, while the sum is 55.

The square root of 998756713 is about 31603.1123941931. The cubic root of 998756713 is about 999.5853991299.

The spelling of 998756713 in words is "nine hundred ninety-eight million, seven hundred fifty-six thousand, seven hundred thirteen".