9993513 has 4 divisors (see below), whose sum is σ = 13324688. Its totient is φ = 6662340.

The previous prime is 9993493. The next prime is 9993517. The reversal of 9993513 is 3153999.

9993513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3153999 = 3 ⋅1051333.

It is not a de Polignac number, because 9993513 - 2⁸ = 9993257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9993517) 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, 1665583 + ... + 1665588.

It is an arithmetic number, because the mean of its divisors is an integer number (3331172).

Almost surely, 2^9993513 is an apocalyptic number.

It is an amenable number.

9993513 is a deficient number, since it is larger than the sum of its proper divisors (3331175).

9993513 is a wasteful number, since it uses less digits than its factorization.

9993513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3331174.

The product of its digits is 32805, while the sum is 39.

The square root of 9993513 is about 3161.2518090149. The cubic root of 9993513 is about 215.3968728667.

The spelling of 9993513 in words is "nine million, nine hundred ninety-three thousand, five hundred thirteen".