9999013 has 4 divisors (see below), whose sum is σ = 10148320. Its totient is φ = 9849708.

The previous prime is 9998977. The next prime is 9999047. The reversal of 9999013 is 3109999.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9999013 - 2¹³ = 9990821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999053) 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, 74553 + ... + 74686.

It is an arithmetic number, because the mean of its divisors is an integer number (2537080).

Almost surely, 2^9999013 is an apocalyptic number.

It is an amenable number.

9999013 is a deficient number, since it is larger than the sum of its proper divisors (149307).

9999013 is a wasteful number, since it uses less digits than its factorization.

9999013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149306.

The product of its (nonzero) digits is 19683, while the sum is 40.

The square root of 9999013 is about 3162.1215979149. The cubic root of 9999013 is about 215.4363806798.

The spelling of 9999013 in words is "nine million, nine hundred ninety-nine thousand, thirteen".