64593853 has 2 divisors, whose sum is σ = 64593854. Its totient is φ = 64593852.

The previous prime is 64593847. The next prime is 64593857. The reversal of 64593853 is 35839546.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64593369 + 484 = 8037^2 + 22^2 .

It is a cyclic number.

It is not a de Polignac number, because 64593853 - 2¹⁷ = 64462781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64593857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32296926 + 32296927.

It is an arithmetic number, because the mean of its divisors is an integer number (32296927).

Almost surely, 2^64593853 is an apocalyptic number.

It is an amenable number.

64593853 is a deficient number, since it is larger than the sum of its proper divisors (1).

64593853 is an equidigital number, since it uses as much as digits as its factorization.

64593853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 43.

The square root of 64593853 is about 8037.0301106814. The cubic root of 64593853 is about 401.2333867340.

The spelling of 64593853 in words is "sixty-four million, five hundred ninety-three thousand, eight hundred fifty-three".