998528329 has 2 divisors, whose sum is σ = 998528330. Its totient is φ = 998528328.

The previous prime is 998528273. The next prime is 998528339. The reversal of 998528329 is 923825899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 781761600 + 216766729 = 27960^2 + 14723^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-998528329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 998528329.

It is not a weakly prime, because it can be changed into another prime (998528339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499264164 + 499264165.

It is an arithmetic number, because the mean of its divisors is an integer number (499264165).

Almost surely, 2^998528329 is an apocalyptic number.

It is an amenable number.

998528329 is a deficient number, since it is larger than the sum of its proper divisors (1).

998528329 is an equidigital number, since it uses as much as digits as its factorization.

998528329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2799360, while the sum is 55.

The square root of 998528329 is about 31599.4988726087. The cubic root of 998528329 is about 999.5092021569.

The spelling of 998528329 in words is "nine hundred ninety-eight million, five hundred twenty-eight thousand, three hundred twenty-nine".