998358469 has 2 divisors, whose sum is σ = 998358470. Its totient is φ = 998358468.

The previous prime is 998358463. The next prime is 998358481. The reversal of 998358469 is 964853899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 697752225 + 300606244 = 26415^2 + 17338^2 .

It is a cyclic number.

It is not a de Polignac number, because 998358469 - 2¹⁷ = 998227397 is a prime.

It is a super-2 number, since 2×998358469² = 1993439265248047922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998358463) 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, 499179234 + 499179235.

It is an arithmetic number, because the mean of its divisors is an integer number (499179235).

Almost surely, 2^998358469 is an apocalyptic number.

It is an amenable number.

998358469 is a deficient number, since it is larger than the sum of its proper divisors (1).

998358469 is an equidigital number, since it uses as much as digits as its factorization.

998358469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16796160, while the sum is 61.

The square root of 998358469 is about 31596.8110574469. The cubic root of 998358469 is about 999.4525233240.

The spelling of 998358469 in words is "nine hundred ninety-eight million, three hundred fifty-eight thousand, four hundred sixty-nine".