65394871 has 2 divisors, whose sum is σ = 65394872. Its totient is φ = 65394870.

The previous prime is 65394859. The next prime is 65394887. The reversal of 65394871 is 17849356.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65394871 - 2⁵ = 65394839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65394851) 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, 32697435 + 32697436.

It is an arithmetic number, because the mean of its divisors is an integer number (32697436).

Almost surely, 2^65394871 is an apocalyptic number.

65394871 is a deficient number, since it is larger than the sum of its proper divisors (1).

65394871 is an equidigital number, since it uses as much as digits as its factorization.

65394871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The square root of 65394871 is about 8086.7095286031. The cubic root of 65394871 is about 402.8851214038.

The spelling of 65394871 in words is "sixty-five million, three hundred ninety-four thousand, eight hundred seventy-one".