989875 has 8 divisors (see below), whose sum is σ = 1235520. Its totient is φ = 791800.

The previous prime is 989873. The next prime is 989887. The reversal of 989875 is 578989.

It is not a de Polignac number, because 989875 - 2¹ = 989873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (989873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3835 + ... + 4084.

It is an arithmetic number, because the mean of its divisors is an integer number (154440).

2⁹⁸⁹⁸⁷⁵ is an apocalyptic number.

989875 is a deficient number, since it is larger than the sum of its proper divisors (245645).

989875 is an equidigital number, since it uses as much as digits as its factorization.

989875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7934 (or 7924 counting only the distinct ones).

The product of its digits is 181440, while the sum is 46.

The square root of 989875 is about 994.9246202602. The cubic root of 989875 is about 99.6613544867.

The spelling of 989875 in words is "nine hundred eighty-nine thousand, eight hundred seventy-five".