998824939 has 8 divisors (see below), whose sum is σ = 1141816320. Its totient is φ = 855909096.

The previous prime is 998824913. The next prime is 998824943. The reversal of 998824939 is 939428899.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 998824939 - 2⁵ = 998824907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (998824969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13062 + ... + 46564.

It is an arithmetic number, because the mean of its divisors is an integer number (142727040).

Almost surely, 2^998824939 is an apocalyptic number.

998824939 is a deficient number, since it is larger than the sum of its proper divisors (142991381).

998824939 is a wasteful number, since it uses less digits than its factorization.

998824939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37769.

The product of its digits is 10077696, while the sum is 61.

The square root of 998824939 is about 31604.1917947604. The cubic root of 998824939 is about 999.6081594811.

The spelling of 998824939 in words is "nine hundred ninety-eight million, eight hundred twenty-four thousand, nine hundred thirty-nine".