66383 has 2 divisors, whose sum is σ = 66384. Its totient is φ = 66382.

The previous prime is 66377. The next prime is 66403. The reversal of 66383 is 38366.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66383 - 2¹⁴ = 49999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33191 + 33192.

It is an arithmetic number, because the mean of its divisors is an integer number (33192).

2⁶⁶³⁸³ is an apocalyptic number.

66383 is a deficient number, since it is larger than the sum of its proper divisors (1).

66383 is an equidigital number, since it uses as much as digits as its factorization.

66383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 26.

The square root of 66383 is about 257.6489860256. The cubic root of 66383 is about 40.4904209424.

The spelling of 66383 in words is "sixty-six thousand, three hundred eighty-three".