406224017 has 2 divisors, whose sum is σ = 406224018. Its totient is φ = 406224016.

The previous prime is 406224001. The next prime is 406224019. The reversal of 406224017 is 710422604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 314849536 + 91374481 = 17744^2 + 9559^2 .

It is a cyclic number.

It is not a de Polignac number, because 406224017 - 2⁴ = 406224001 is a prime.

Together with 406224019, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (406224019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203112008 + 203112009.

It is an arithmetic number, because the mean of its divisors is an integer number (203112009).

Almost surely, 2^406224017 is an apocalyptic number.

It is an amenable number.

406224017 is a deficient number, since it is larger than the sum of its proper divisors (1).

406224017 is an equidigital number, since it uses as much as digits as its factorization.

406224017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 406224017 is about 20154.9998015381. Note that the first 3 decimals coincide. The cubic root of 406224017 is about 740.6082271169.

The spelling of 406224017 in words is "four hundred six million, two hundred twenty-four thousand, seventeen".