66283387 has 2 divisors, whose sum is σ = 66283388. Its totient is φ = 66283386.

The previous prime is 66283369. The next prime is 66283403. The reversal of 66283387 is 78338266.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66283387 - 2¹¹ = 66281339 is a prime.

It is not a weakly prime, because it can be changed into another prime (66283367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33141693 + 33141694.

It is an arithmetic number, because the mean of its divisors is an integer number (33141694).

Almost surely, 2^66283387 is an apocalyptic number.

66283387 is a deficient number, since it is larger than the sum of its proper divisors (1).

66283387 is an equidigital number, since it uses as much as digits as its factorization.

66283387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 43.

The square root of 66283387 is about 8141.4609868254. The cubic root of 66283387 is about 404.7015776531.

The spelling of 66283387 in words is "sixty-six million, two hundred eighty-three thousand, three hundred eighty-seven".