12022993 has 4 divisors (see below), whose sum is σ = 12033648. Its totient is φ = 12012340.

The previous prime is 12022979. The next prime is 12023003. The reversal of 12022993 is 39922021.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12022993 - 2⁹ = 12022481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12022973) 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, 3403 + ... + 5968.

It is an arithmetic number, because the mean of its divisors is an integer number (3008412).

Almost surely, 2^12022993 is an apocalyptic number.

It is an amenable number.

12022993 is a deficient number, since it is larger than the sum of its proper divisors (10655).

12022993 is an equidigital number, since it uses as much as digits as its factorization.

12022993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10654.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 12022993 is about 3467.4187805917. The cubic root of 12022993 is about 229.0889797426.

The spelling of 12022993 in words is "twelve million, twenty-two thousand, nine hundred ninety-three".