64865071 has 2 divisors, whose sum is σ = 64865072. Its totient is φ = 64865070.

The previous prime is 64865041. The next prime is 64865089. The reversal of 64865071 is 17056846.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64865071 - 2⁵ = 64865039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64865071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64865041) 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, 32432535 + 32432536.

It is an arithmetic number, because the mean of its divisors is an integer number (32432536).

Almost surely, 2^64865071 is an apocalyptic number.

64865071 is a deficient number, since it is larger than the sum of its proper divisors (1).

64865071 is an equidigital number, since it uses as much as digits as its factorization.

64865071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 64865071 is about 8053.8854598262. The cubic root of 64865071 is about 401.7941715884.

The spelling of 64865071 in words is "sixty-four million, eight hundred sixty-five thousand, seventy-one".