65864263 has 2 divisors, whose sum is σ = 65864264. Its totient is φ = 65864262.

The previous prime is 65864233. The next prime is 65864287. The reversal of 65864263 is 36246856.

It is a happy number.

65864263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65864263 - 2⁹ = 65863751 is a prime.

It is a super-2 number, since 2×65864263² = 8676202281066338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65864233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32932131 + 32932132.

It is an arithmetic number, because the mean of its divisors is an integer number (32932132).

Almost surely, 2^65864263 is an apocalyptic number.

65864263 is a deficient number, since it is larger than the sum of its proper divisors (1).

65864263 is an equidigital number, since it uses as much as digits as its factorization.

65864263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 40.

The square root of 65864263 is about 8115.6800700865. The cubic root of 65864263 is about 403.8467685889.

The spelling of 65864263 in words is "sixty-five million, eight hundred sixty-four thousand, two hundred sixty-three".