998596229 has 2 divisors, whose sum is σ = 998596230. Its totient is φ = 998596228.

The previous prime is 998596223. The next prime is 998596241. The reversal of 998596229 is 922695899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 618268225 + 380328004 = 24865^2 + 19502^2 .

It is a cyclic number.

It is not a de Polignac number, because 998596229 - 2²⁸ = 730160773 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998596223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499298114 + 499298115.

It is an arithmetic number, because the mean of its divisors is an integer number (499298115).

Almost surely, 2^998596229 is an apocalyptic number.

It is an amenable number.

998596229 is a deficient number, since it is larger than the sum of its proper divisors (1).

998596229 is an equidigital number, since it uses as much as digits as its factorization.

998596229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6298560, while the sum is 59.

The square root of 998596229 is about 31600.5732384715. The cubic root of 998596229 is about 999.5318572099.

The spelling of 998596229 in words is "nine hundred ninety-eight million, five hundred ninety-six thousand, two hundred twenty-nine".