664062017 has 2 divisors, whose sum is σ = 664062018. Its totient is φ = 664062016.

The previous prime is 664062011. The next prime is 664062073. The reversal of 664062017 is 710260466.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 661724176 + 2337841 = 25724^2 + 1529^2 .

It is a cyclic number.

It is not a de Polignac number, because 664062017 - 2¹⁶ = 663996481 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (664062011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332031008 + 332031009.

It is an arithmetic number, because the mean of its divisors is an integer number (332031009).

Almost surely, 2^664062017 is an apocalyptic number.

It is an amenable number.

664062017 is a deficient number, since it is larger than the sum of its proper divisors (1).

664062017 is an equidigital number, since it uses as much as digits as its factorization.

664062017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 664062017 is about 25769.4007885321. The cubic root of 664062017 is about 872.4412943427.

The spelling of 664062017 in words is "six hundred sixty-four million, sixty-two thousand, seventeen".