998824793 has 2 divisors, whose sum is σ = 998824794. Its totient is φ = 998824792.

The previous prime is 998824787. The next prime is 998824831. The reversal of 998824793 is 397428899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 501222544 + 497602249 = 22388^2 + 22307^2 .

It is a cyclic number.

It is not a de Polignac number, because 998824793 - 2²⁰ = 997776217 is a prime.

It is a super-2 number, since 2×998824793² = 1995301934222985698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (998824093) 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, 499412396 + 499412397.

It is an arithmetic number, because the mean of its divisors is an integer number (499412397).

Almost surely, 2^998824793 is an apocalyptic number.

It is an amenable number.

998824793 is a deficient number, since it is larger than the sum of its proper divisors (1).

998824793 is an equidigital number, since it uses as much as digits as its factorization.

998824793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 59.

The square root of 998824793 is about 31604.1894849401. The cubic root of 998824793 is about 999.6081107762.

The spelling of 998824793 in words is "nine hundred ninety-eight million, eight hundred twenty-four thousand, seven hundred ninety-three".