9842489 has 4 divisors (see below), whose sum is σ = 9899556. Its totient is φ = 9785424.

The previous prime is 9842477. The next prime is 9842509.

It is a happy number.

9842489 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5326864 + 4515625 = 2308^2 + 2125^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9842489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9845489) 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, 28274 + ... + 28619.

It is an arithmetic number, because the mean of its divisors is an integer number (2474889).

Almost surely, 2^9842489 is an apocalyptic number.

It is an amenable number.

9842489 is a deficient number, since it is larger than the sum of its proper divisors (57067).

9842489 is a wasteful number, since it uses less digits than its factorization.

9842489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57066.

The product of its digits is 165888, while the sum is 44.

The square root of 9842489 is about 3137.2741352964. The cubic root of 9842489 is about 214.3063202830.

The spelling of 9842489 in words is "nine million, eight hundred forty-two thousand, four hundred eighty-nine".