64570673 has 2 divisors, whose sum is σ = 64570674. Its totient is φ = 64570672.

The previous prime is 64570663. The next prime is 64570679. The reversal of 64570673 is 37607546.

64570673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59243809 + 5326864 = 7697^2 + 2308^2 .

It is a cyclic number.

It is not a de Polignac number, because 64570673 - 2¹⁰ = 64569649 is a prime.

It is not a weakly prime, because it can be changed into another prime (64570679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32285336 + 32285337.

It is an arithmetic number, because the mean of its divisors is an integer number (32285337).

Almost surely, 2^64570673 is an apocalyptic number.

It is an amenable number.

64570673 is a deficient number, since it is larger than the sum of its proper divisors (1).

64570673 is an equidigital number, since it uses as much as digits as its factorization.

64570673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 64570673 is about 8035.5879063078. The cubic root of 64570673 is about 401.1853857647.

The spelling of 64570673 in words is "sixty-four million, five hundred seventy thousand, six hundred seventy-three".