65413217 has 2 divisors, whose sum is σ = 65413218. Its totient is φ = 65413216.

The previous prime is 65413207. The next prime is 65413247. The reversal of 65413217 is 71231456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64705936 + 707281 = 8044^2 + 841^2 .

It is a cyclic number.

It is not a de Polignac number, because 65413217 - 2⁸ = 65412961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65413217.

It is not a weakly prime, because it can be changed into another prime (65413207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32706608 + 32706609.

It is an arithmetic number, because the mean of its divisors is an integer number (32706609).

Almost surely, 2^65413217 is an apocalyptic number.

It is an amenable number.

65413217 is a deficient number, since it is larger than the sum of its proper divisors (1).

65413217 is an equidigital number, since it uses as much as digits as its factorization.

65413217 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 65413217 is about 8087.8437794013. The cubic root of 65413217 is about 402.9227932642.

The spelling of 65413217 in words is "sixty-five million, four hundred thirteen thousand, two hundred seventeen".