989113 has 4 divisors (see below), whose sum is σ = 993060. Its totient is φ = 985168.

The previous prime is 989099. The next prime is 989119. The reversal of 989113 is 311989.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 311989 = 101 ⋅3089.

It can be written as a sum of positive squares in 2 ways, for example, as 393129 + 595984 = 627^2 + 772^2 .

It is a cyclic number.

It is not a de Polignac number, because 989113 - 2⁵ = 989081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (989119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1570 + ... + 2107.

It is an arithmetic number, because the mean of its divisors is an integer number (248265).

2⁹⁸⁹¹¹³ is an apocalyptic number.

It is an amenable number.

989113 is a deficient number, since it is larger than the sum of its proper divisors (3947).

989113 is a wasteful number, since it uses less digits than its factorization.

989113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3946.

The product of its digits is 1944, while the sum is 31.

The square root of 989113 is about 994.5416029508. The cubic root of 989113 is about 99.6357750122.

The spelling of 989113 in words is "nine hundred eighty-nine thousand, one hundred thirteen".