65321471 has 2 divisors, whose sum is σ = 65321472. Its totient is φ = 65321470.

The previous prime is 65321441. The next prime is 65321483. The reversal of 65321471 is 17412356.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65321471 is a prime.

It is a super-3 number, since 3×65321471³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65321401) 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, 32660735 + 32660736.

It is an arithmetic number, because the mean of its divisors is an integer number (32660736).

Almost surely, 2^65321471 is an apocalyptic number.

65321471 is a deficient number, since it is larger than the sum of its proper divisors (1).

65321471 is an equidigital number, since it uses as much as digits as its factorization.

65321471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 65321471 is about 8082.1699437713. The cubic root of 65321471 is about 402.7343305836.

The spelling of 65321471 in words is "sixty-five million, three hundred twenty-one thousand, four hundred seventy-one".