12722433 has 4 divisors (see below), whose sum is σ = 16963248. Its totient is φ = 8481620.

The previous prime is 12722417. The next prime is 12722447. The reversal of 12722433 is 33422721.

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: 33422721 = 3 ⋅11140907.

It is a cyclic number.

It is not a de Polignac number, because 12722433 - 2⁴ = 12722417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12722233) 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, 2120403 + ... + 2120408.

It is an arithmetic number, because the mean of its divisors is an integer number (4240812).

Almost surely, 2^12722433 is an apocalyptic number.

It is an amenable number.

12722433 is a deficient number, since it is larger than the sum of its proper divisors (4240815).

12722433 is an equidigital number, since it uses as much as digits as its factorization.

12722433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4240814.

The product of its digits is 2016, while the sum is 24.

The square root of 12722433 is about 3566.8519733793. The cubic root of 12722433 is about 233.4479461875.

The spelling of 12722433 in words is "twelve million, seven hundred twenty-two thousand, four hundred thirty-three".