993013313 has 4 divisors (see below), whose sum is σ = 1006999488. Its totient is φ = 979027140.

The previous prime is 993013309. The next prime is 993013337. The reversal of 993013313 is 313310399.

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: 313310399 = 19 ⋅16490021.

It is a cyclic number.

It is not a de Polignac number, because 993013313 - 2² = 993013309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 993013313.

It is not an unprimeable number, because it can be changed into a prime (993013013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6992981 + ... + 6993122.

It is an arithmetic number, because the mean of its divisors is an integer number (251749872).

Almost surely, 2^993013313 is an apocalyptic number.

It is an amenable number.

993013313 is a deficient number, since it is larger than the sum of its proper divisors (13986175).

993013313 is a wasteful number, since it uses less digits than its factorization.

993013313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13986174.

The product of its (nonzero) digits is 6561, while the sum is 32.

The square root of 993013313 is about 31512.1137501120. The cubic root of 993013313 is about 997.6656594275.

The spelling of 993013313 in words is "nine hundred ninety-three million, thirteen thousand, three hundred thirteen".