65684063 has 2 divisors, whose sum is σ = 65684064. Its totient is φ = 65684062.

The previous prime is 65684041. The next prime is 65684081. The reversal of 65684063 is 36048656.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65684063 - 2²² = 61489759 is a prime.

It is a super-2 number, since 2×65684063² = 8628792264375938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65684363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32842031 + 32842032.

It is an arithmetic number, because the mean of its divisors is an integer number (32842032).

Almost surely, 2^65684063 is an apocalyptic number.

65684063 is a deficient number, since it is larger than the sum of its proper divisors (1).

65684063 is an equidigital number, since it uses as much as digits as its factorization.

65684063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 65684063 is about 8104.5705006496. The cubic root of 65684063 is about 403.4781333944.

The spelling of 65684063 in words is "sixty-five million, six hundred eighty-four thousand, sixty-three".