912993 has 4 divisors (see below), whose sum is σ = 1217328. Its totient is φ = 608660.

The previous prime is 912991. The next prime is 913013. The reversal of 912993 is 399219.

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: 399219 = 3 ⋅133073.

It is a cyclic number.

It is not a de Polignac number, because 912993 - 2¹ = 912991 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (912991) 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, 152163 + ... + 152168.

It is an arithmetic number, because the mean of its divisors is an integer number (304332).

2⁹¹²⁹⁹³ is an apocalyptic number.

It is an amenable number.

912993 is a deficient number, since it is larger than the sum of its proper divisors (304335).

912993 is a wasteful number, since it uses less digits than its factorization.

912993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304334.

The product of its digits is 4374, while the sum is 33.

The square root of 912993 is about 955.5066718762. The cubic root of 912993 is about 97.0113353388.

The spelling of 912993 in words is "nine hundred twelve thousand, nine hundred ninety-three".