64707871 has 2 divisors, whose sum is σ = 64707872. Its totient is φ = 64707870.

The previous prime is 64707833. The next prime is 64707887. The reversal of 64707871 is 17870746.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64707871 - 2⁷ = 64707743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64707271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32353935 + 32353936.

It is an arithmetic number, because the mean of its divisors is an integer number (32353936).

Almost surely, 2^64707871 is an apocalyptic number.

64707871 is a deficient number, since it is larger than the sum of its proper divisors (1).

64707871 is an equidigital number, since it uses as much as digits as its factorization.

64707871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 64707871 is about 8044.1202750829. The cubic root of 64707871 is about 401.4693273343.

It can be divided in two parts, 6470 and 7871, that added together give a palindrome (14341).

The spelling of 64707871 in words is "sixty-four million, seven hundred seven thousand, eight hundred seventy-one".