998602013 has 2 divisors, whose sum is σ = 998602014. Its totient is φ = 998602012.

The previous prime is 998602009. The next prime is 998602043. The reversal of 998602013 is 310206899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 996854329 + 1747684 = 31573^2 + 1322^2 .

It is a cyclic number.

It is not a de Polignac number, because 998602013 - 2² = 998602009 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998602043) 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, 499301006 + 499301007.

It is an arithmetic number, because the mean of its divisors is an integer number (499301007).

Almost surely, 2^998602013 is an apocalyptic number.

It is an amenable number.

998602013 is a deficient number, since it is larger than the sum of its proper divisors (1).

998602013 is an equidigital number, since it uses as much as digits as its factorization.

998602013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 998602013 is about 31600.6647556661. The cubic root of 998602013 is about 999.5337870126.

The spelling of 998602013 in words is "nine hundred ninety-eight million, six hundred two thousand, thirteen".