998589925 has 12 divisors (see below), whose sum is σ = 1239047680. Its totient is φ = 798358320.

The previous prime is 998589923. The next prime is 998589953. The reversal of 998589925 is 529985899.

It is not a de Polignac number, because 998589925 - 2¹ = 998589923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998589923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29566 + ... + 53584.

Almost surely, 2^998589925 is an apocalyptic number.

It is an amenable number.

998589925 is a deficient number, since it is larger than the sum of its proper divisors (240457755).

998589925 is a wasteful number, since it uses less digits than its factorization.

998589925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25692 (or 25687 counting only the distinct ones).

The product of its digits is 20995200, while the sum is 64.

The square root of 998589925 is about 31600.4734932880. The cubic root of 998589925 is about 999.5297539033.

The spelling of 998589925 in words is "nine hundred ninety-eight million, five hundred eighty-nine thousand, nine hundred twenty-five".