65493217 has 2 divisors, whose sum is σ = 65493218. Its totient is φ = 65493216.

The previous prime is 65493203. The next prime is 65493287. The reversal of 65493217 is 71239456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65221776 + 271441 = 8076^2 + 521^2 .

It is a cyclic number.

It is not a de Polignac number, because 65493217 - 2¹⁵ = 65460449 is a prime.

It is a super-2 number, since 2×65493217² = 8578722946018178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65493287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32746608 + 32746609.

It is an arithmetic number, because the mean of its divisors is an integer number (32746609).

Almost surely, 2^65493217 is an apocalyptic number.

It is an amenable number.

65493217 is a deficient number, since it is larger than the sum of its proper divisors (1).

65493217 is an equidigital number, since it uses as much as digits as its factorization.

65493217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 37.

The square root of 65493217 is about 8092.7879621302. The cubic root of 65493217 is about 403.0869837916.

The spelling of 65493217 in words is "sixty-five million, four hundred ninety-three thousand, two hundred seventeen".