64896173 has 2 divisors, whose sum is σ = 64896174. Its totient is φ = 64896172.

The previous prime is 64896151. The next prime is 64896193. The reversal of 64896173 is 37169846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63648484 + 1247689 = 7978^2 + 1117^2 .

It is a cyclic number.

It is not a de Polignac number, because 64896173 - 2⁶ = 64896109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64896103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32448086 + 32448087.

It is an arithmetic number, because the mean of its divisors is an integer number (32448087).

Almost surely, 2^64896173 is an apocalyptic number.

It is an amenable number.

64896173 is a deficient number, since it is larger than the sum of its proper divisors (1).

64896173 is an equidigital number, since it uses as much as digits as its factorization.

64896173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 44.

The square root of 64896173 is about 8055.8160977023. The cubic root of 64896173 is about 401.8583797739.

The spelling of 64896173 in words is "sixty-four million, eight hundred ninety-six thousand, one hundred seventy-three".