9912993 has 4 divisors (see below), whose sum is σ = 13217328. Its totient is φ = 6608660.

The previous prime is 9912979. The next prime is 9913027. The reversal of 9912993 is 3992199.

It is a happy number.

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: 3992199 = 3 ⋅1330733.

It is a cyclic number.

It is not a de Polignac number, because 9912993 - 2⁹ = 9912481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9912913) 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, 1652163 + ... + 1652168.

It is an arithmetic number, because the mean of its divisors is an integer number (3304332).

Almost surely, 2^9912993 is an apocalyptic number.

It is an amenable number.

9912993 is a deficient number, since it is larger than the sum of its proper divisors (3304335).

9912993 is a wasteful number, since it uses less digits than its factorization.

9912993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304334.

The product of its digits is 39366, while the sum is 42.

The square root of 9912993 is about 3148.4905907434. The cubic root of 9912993 is about 214.8168116911.

The spelling of 9912993 in words is "nine million, nine hundred twelve thousand, nine hundred ninety-three".