9909613 has 16 divisors (see below), whose sum is σ = 11692800. Its totient is φ = 8394288.

The previous prime is 9909611. The next prime is 9909629. The reversal of 9909613 is 3169099.

9909613 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9909613 - 2¹ = 9909611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9909611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57195 + ... + 57367.

It is an arithmetic number, because the mean of its divisors is an integer number (730800).

Almost surely, 2^9909613 is an apocalyptic number.

It is an amenable number.

9909613 is a deficient number, since it is larger than the sum of its proper divisors (1783187).

9909613 is a wasteful number, since it uses less digits than its factorization.

9909613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 9909613 is about 3147.9537798386. The cubic root of 9909613 is about 214.7923937929.

The spelling of 9909613 in words is "nine million, nine hundred nine thousand, six hundred thirteen".