64706171 has 2 divisors, whose sum is σ = 64706172. Its totient is φ = 64706170.

The previous prime is 64706141. The next prime is 64706189. The reversal of 64706171 is 17160746.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64706171 - 2¹⁴ = 64689787 is a prime.

It is not a weakly prime, because it can be changed into another prime (64706141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32353085 + 32353086.

It is an arithmetic number, because the mean of its divisors is an integer number (32353086).

Almost surely, 2^64706171 is an apocalyptic number.

64706171 is a deficient number, since it is larger than the sum of its proper divisors (1).

64706171 is an equidigital number, since it uses as much as digits as its factorization.

64706171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 64706171 is about 8044.0146071474. The cubic root of 64706171 is about 401.4658115135.

The spelling of 64706171 in words is "sixty-four million, seven hundred six thousand, one hundred seventy-one".