998573583 has 16 divisors (see below), whose sum is σ = 1550347776. Its totient is φ = 559846560.

The previous prime is 998573579. The next prime is 998573623. The reversal of 998573583 is 385375899.

It is not a de Polignac number, because 998573583 - 2² = 998573579 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998573383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447483 + ... + 449708.

It is an arithmetic number, because the mean of its divisors is an integer number (96896736).

Almost surely, 2^998573583 is an apocalyptic number.

998573583 is a deficient number, since it is larger than the sum of its proper divisors (551774193).

998573583 is a wasteful number, since it uses less digits than its factorization.

998573583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897254.

The product of its digits is 8164800, while the sum is 57.

The square root of 998573583 is about 31600.2149201552. The cubic root of 998573583 is about 999.5243014134.

The spelling of 998573583 in words is "nine hundred ninety-eight million, five hundred seventy-three thousand, five hundred eighty-three".