65987683 has 2 divisors, whose sum is σ = 65987684. Its totient is φ = 65987682.

The previous prime is 65987681. The next prime is 65987699. The reversal of 65987683 is 38678956.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65987683 - 2¹ = 65987681 is a prime.

Together with 65987681, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 65987683.

It is not a weakly prime, because it can be changed into another prime (65987681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32993841 + 32993842.

It is an arithmetic number, because the mean of its divisors is an integer number (32993842).

Almost surely, 2^65987683 is an apocalyptic number.

65987683 is a deficient number, since it is larger than the sum of its proper divisors (1).

65987683 is an equidigital number, since it uses as much as digits as its factorization.

65987683 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 52.

The square root of 65987683 is about 8123.2803103180. The cubic root of 65987683 is about 404.0988611278.

The spelling of 65987683 in words is "sixty-five million, nine hundred eighty-seven thousand, six hundred eighty-three".