64735871 has 2 divisors, whose sum is σ = 64735872. Its totient is φ = 64735870.

The previous prime is 64735861. The next prime is 64735901. The reversal of 64735871 is 17853746.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64735871 - 2⁶ = 64735807 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64735861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32367935 + 32367936.

It is an arithmetic number, because the mean of its divisors is an integer number (32367936).

Almost surely, 2^64735871 is an apocalyptic number.

64735871 is a deficient number, since it is larger than the sum of its proper divisors (1).

64735871 is an equidigital number, since it uses as much as digits as its factorization.

64735871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 41.

The square root of 64735871 is about 8045.8604884748. The cubic root of 64735871 is about 401.5272261132.

The spelling of 64735871 in words is "sixty-four million, seven hundred thirty-five thousand, eight hundred seventy-one".