998925 has 24 divisors (see below), whose sum is σ = 1740960. Its totient is φ = 504000.

The previous prime is 998917. The next prime is 998927. The reversal of 998925 is 529899.

It is not a de Polignac number, because 998925 - 2³ = 998917 is a prime.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 998925.

It is not an unprimeable number, because it can be changed into a prime (998927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1075 + ... + 1775.

It is an arithmetic number, because the mean of its divisors is an integer number (72540).

2⁹⁹⁸⁹²⁵ is an apocalyptic number.

998925 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

998925 is a deficient number, since it is larger than the sum of its proper divisors (742035).

998925 is a wasteful number, since it uses less digits than its factorization.

998925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733 (or 728 counting only the distinct ones).

The product of its digits is 58320, while the sum is 42.

The square root of 998925 is about 999.4623554692. The cubic root of 998925 is about 99.9641538187.

The spelling of 998925 in words is "nine hundred ninety-eight thousand, nine hundred twenty-five".