1064664673 has 2 divisors, whose sum is σ = 1064664674. Its totient is φ = 1064664672.

The previous prime is 1064664647. The next prime is 1064664683. The reversal of 1064664673 is 3764664601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1037290849 + 27373824 = 32207^2 + 5232^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1064664673 is a prime.

It is a super-2 number, since 2×1064664673² = 2267021731868393858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1064664683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532332336 + 532332337.

It is an arithmetic number, because the mean of its divisors is an integer number (532332337).

Almost surely, 2^1064664673 is an apocalyptic number.

It is an amenable number.

1064664673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1064664673 is an equidigital number, since it uses as much as digits as its factorization.

1064664673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 43.

The square root of 1064664673 is about 32629.1996990426. The cubic root of 1064664673 is about 1021.1062817623.

The spelling of 1064664673 in words is "one billion, sixty-four million, six hundred sixty-four thousand, six hundred seventy-three".