64071071 has 2 divisors, whose sum is σ = 64071072. Its totient is φ = 64071070.

The previous prime is 64071037. The next prime is 64071187. The reversal of 64071071 is 17017046.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64071071 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64071071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64071001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32035535 + 32035536.

It is an arithmetic number, because the mean of its divisors is an integer number (32035536).

Almost surely, 2^64071071 is an apocalyptic number.

64071071 is a deficient number, since it is larger than the sum of its proper divisors (1).

64071071 is an equidigital number, since it uses as much as digits as its factorization.

64071071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 64071071 is about 8004.4407050087. The cubic root of 64071071 is about 400.1480098093.

The spelling of 64071071 in words is "sixty-four million, seventy-one thousand, seventy-one".