64856353 has 2 divisors, whose sum is σ = 64856354. Its totient is φ = 64856352.

The previous prime is 64856333. The next prime is 64856369. The reversal of 64856353 is 35365846.

64856353 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., 61591104 + 3265249 = 7848^2 + 1807^2 .

It is a cyclic number.

It is not a de Polignac number, because 64856353 - 2⁵ = 64856321 is a prime.

It is not a weakly prime, because it can be changed into another prime (64856333) 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, 32428176 + 32428177.

It is an arithmetic number, because the mean of its divisors is an integer number (32428177).

Almost surely, 2^64856353 is an apocalyptic number.

It is an amenable number.

64856353 is a deficient number, since it is larger than the sum of its proper divisors (1).

64856353 is an equidigital number, since it uses as much as digits as its factorization.

64856353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 40.

The square root of 64856353 is about 8053.3442121891. The cubic root of 64856353 is about 401.7761701254.

The spelling of 64856353 in words is "sixty-four million, eight hundred fifty-six thousand, three hundred fifty-three".