9998875 has 16 divisors (see below), whose sum is σ = 12789504. Its totient is φ = 7800000.

The previous prime is 9998867. The next prime is 9998887. The reversal of 9998875 is 5788999.

It is not a de Polignac number, because 9998875 - 2³ = 9998867 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4150 + ... + 6100.

It is an arithmetic number, because the mean of its divisors is an integer number (799344).

Almost surely, 2^9998875 is an apocalyptic number.

9998875 is a deficient number, since it is larger than the sum of its proper divisors (2790629).

9998875 is a wasteful number, since it uses less digits than its factorization.

9998875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007 (or 1997 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 55.

The square root of 9998875 is about 3162.0997770469. The cubic root of 9998875 is about 215.4353895701.

The spelling of 9998875 in words is "nine million, nine hundred ninety-eight thousand, eight hundred seventy-five".