65318387 has 2 divisors, whose sum is σ = 65318388. Its totient is φ = 65318386.

The previous prime is 65318339. The next prime is 65318401. The reversal of 65318387 is 78381356.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65318387 - 2¹⁰ = 65317363 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65318287) 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, 32659193 + 32659194.

It is an arithmetic number, because the mean of its divisors is an integer number (32659194).

Almost surely, 2^65318387 is an apocalyptic number.

65318387 is a deficient number, since it is larger than the sum of its proper divisors (1).

65318387 is an equidigital number, since it uses as much as digits as its factorization.

65318387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 65318387 is about 8081.9791511733. The cubic root of 65318387 is about 402.7279924316.

The spelling of 65318387 in words is "sixty-five million, three hundred eighteen thousand, three hundred eighty-seven".