9913489 has 4 divisors (see below), whose sum is σ = 9919924. Its totient is φ = 9907056.

The previous prime is 9913469. The next prime is 9913507. The reversal of 9913489 is 9843199.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3359889 + 6553600 = 1833^2 + 2560^2 .

It is a cyclic number.

It is not a de Polignac number, because 9913489 - 2⁷ = 9913361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9913429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 619 + ... + 4495.

It is an arithmetic number, because the mean of its divisors is an integer number (2479981).

Almost surely, 2^9913489 is an apocalyptic number.

It is an amenable number.

9913489 is a deficient number, since it is larger than the sum of its proper divisors (6435).

9913489 is a wasteful number, since it uses less digits than its factorization.

9913489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6434.

The product of its digits is 69984, while the sum is 43.

The square root of 9913489 is about 3148.5693576607. The cubic root of 9913489 is about 214.8203944423.

The spelling of 9913489 in words is "nine million, nine hundred thirteen thousand, four hundred eighty-nine".