65814473 has 2 divisors, whose sum is σ = 65814474. Its totient is φ = 65814472.

The previous prime is 65814451. The next prime is 65814479. The reversal of 65814473 is 37441856.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60016009 + 5798464 = 7747^2 + 2408^2 .

It is a cyclic number.

It is not a de Polignac number, because 65814473 - 2⁶ = 65814409 is a prime.

It is not a weakly prime, because it can be changed into another prime (65814479) 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, 32907236 + 32907237.

It is an arithmetic number, because the mean of its divisors is an integer number (32907237).

Almost surely, 2^65814473 is an apocalyptic number.

It is an amenable number.

65814473 is a deficient number, since it is larger than the sum of its proper divisors (1).

65814473 is an equidigital number, since it uses as much as digits as its factorization.

65814473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 38.

The square root of 65814473 is about 8112.6119714923. The cubic root of 65814473 is about 403.7449804639.

The spelling of 65814473 in words is "sixty-five million, eight hundred fourteen thousand, four hundred seventy-three".