64688083 has 2 divisors, whose sum is σ = 64688084. Its totient is φ = 64688082.

The previous prime is 64688081. The next prime is 64688089. The reversal of 64688083 is 38088646.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64688083 - 2¹ = 64688081 is a prime.

Together with 64688081, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (64688081) 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, 32344041 + 32344042.

It is an arithmetic number, because the mean of its divisors is an integer number (32344042).

Almost surely, 2^64688083 is an apocalyptic number.

64688083 is a deficient number, since it is larger than the sum of its proper divisors (1).

64688083 is an equidigital number, since it uses as much as digits as its factorization.

64688083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 64688083 is about 8042.8902143446. The cubic root of 64688083 is about 401.4283993665.

The spelling of 64688083 in words is "sixty-four million, six hundred eighty-eight thousand, eighty-three".