9930913 has 4 divisors (see below), whose sum is σ = 9946260. Its totient is φ = 9915568.

The previous prime is 9930889. The next prime is 9930919. The reversal of 9930913 is 3190399.

It is a happy number.

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 8714304 + 1216609 = 2952^2 + 1103^2 .

It is a cyclic number.

It is not a de Polignac number, because 9930913 - 2¹³ = 9922721 is a prime.

It is a Duffinian number.

9930913 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9930919) 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, 6658 + ... + 8011.

It is an arithmetic number, because the mean of its divisors is an integer number (2486565).

Almost surely, 2^9930913 is an apocalyptic number.

It is an amenable number.

9930913 is a deficient number, since it is larger than the sum of its proper divisors (15347).

9930913 is a wasteful number, since it uses less digits than its factorization.

9930913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15346.

The product of its (nonzero) digits is 6561, while the sum is 34.

The square root of 9930913 is about 3151.3351138843. The cubic root of 9930913 is about 214.9461772610.

The spelling of 9930913 in words is "nine million, nine hundred thirty thousand, nine hundred thirteen".