989165 has 8 divisors (see below), whose sum is σ = 1194648. Its totient is φ = 786240.

The previous prime is 989123. The next prime is 989171. The reversal of 989165 is 561989.

It can be written as a sum of positive squares in 4 ways, for example, as 94249 + 894916 = 307^2 + 946^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 989165 - 2⁸ = 988909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359 + ... + 1451.

It is an arithmetic number, because the mean of its divisors is an integer number (149331).

2⁹⁸⁹¹⁶⁵ is an apocalyptic number.

It is an amenable number.

989165 is a deficient number, since it is larger than the sum of its proper divisors (205483).

989165 is a wasteful number, since it uses less digits than its factorization.

989165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279.

The product of its digits is 19440, while the sum is 38.

The square root of 989165 is about 994.5677453045. The cubic root of 989165 is about 99.6375210107.

The spelling of 989165 in words is "nine hundred eighty-nine thousand, one hundred sixty-five".