998654329 has 2 divisors, whose sum is σ = 998654330. Its totient is φ = 998654328.

The previous prime is 998654281. The next prime is 998654339. The reversal of 998654329 is 923456899.

It is a happy number.

998654329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 513113104 + 485541225 = 22652^2 + 22035^2 .

It is a cyclic number.

It is not a de Polignac number, because 998654329 - 2¹⁹ = 998130041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 998654329.

It is not a weakly prime, because it can be changed into another prime (998654339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499327164 + 499327165.

It is an arithmetic number, because the mean of its divisors is an integer number (499327165).

Almost surely, 2^998654329 is an apocalyptic number.

It is an amenable number.

998654329 is a deficient number, since it is larger than the sum of its proper divisors (1).

998654329 is an equidigital number, since it uses as much as digits as its factorization.

998654329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4199040, while the sum is 55.

The square root of 998654329 is about 31601.4925122216. The cubic root of 998654329 is about 999.5512416461.

The spelling of 998654329 in words is "nine hundred ninety-eight million, six hundred fifty-four thousand, three hundred twenty-nine".