9989613 has 12 divisors (see below), whose sum is σ = 15057120. Its totient is φ = 6370056.

The previous prime is 9989587. The next prime is 9989671. The reversal of 9989613 is 3169899.

It is not a de Polignac number, because 9989613 - 2²¹ = 7892461 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9989713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23923 + ... + 24336.

It is an arithmetic number, because the mean of its divisors is an integer number (1254760).

Almost surely, 2^9989613 is an apocalyptic number.

It is an amenable number.

9989613 is a deficient number, since it is larger than the sum of its proper divisors (5067507).

9989613 is a wasteful number, since it uses less digits than its factorization.

9989613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48288 (or 48285 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 9989613 is about 3160.6349045722. The cubic root of 9989613 is about 215.3688494510.

The spelling of 9989613 in words is "nine million, nine hundred eighty-nine thousand, six hundred thirteen".