998350693 has 2 divisors, whose sum is σ = 998350694. Its totient is φ = 998350692.

The previous prime is 998350679. The next prime is 998350739. The reversal of 998350693 is 396053899.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 673558209 + 324792484 = 25953^2 + 18022^2 .

It is a cyclic number.

It is not a de Polignac number, because 998350693 - 2⁹ = 998350181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 998350693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998350603) 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, 499175346 + 499175347.

It is an arithmetic number, because the mean of its divisors is an integer number (499175347).

Almost surely, 2^998350693 is an apocalyptic number.

It is an amenable number.

998350693 is a deficient number, since it is larger than the sum of its proper divisors (1).

998350693 is an equidigital number, since it uses as much as digits as its factorization.

998350693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1574640, while the sum is 52.

The square root of 998350693 is about 31596.6880068149. The cubic root of 998350693 is about 999.4499284768.

The spelling of 998350693 in words is "nine hundred ninety-eight million, three hundred fifty thousand, six hundred ninety-three".