998973020 has 24 divisors (see below), whose sum is σ = 2105268144. Its totient is φ = 398174976.

The previous prime is 998973011. The next prime is 998973029. The reversal of 998973020 is 20379899.

It is an interprime number because it is at equal distance from previous prime (998973011) and next prime (998973029).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998973029) 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 in 7 ways as a sum of consecutive naturals, for example, 82589 + ... + 93908.

It is an arithmetic number, because the mean of its divisors is an integer number (87719506).

Almost surely, 2^998973020 is an apocalyptic number.

It is an amenable number.

998973020 is an abundant number, since it is smaller than the sum of its proper divisors (1106295124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

998973020 is a wasteful number, since it uses less digits than its factorization.

998973020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176789 (or 176787 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 998973020 is about 31606.5344509644. The cubic root of 998973020 is about 999.6575560789.

The spelling of 998973020 in words is "nine hundred ninety-eight million, nine hundred seventy-three thousand, twenty".