66982303 has 2 divisors, whose sum is σ = 66982304. Its totient is φ = 66982302.

The previous prime is 66982249. The next prime is 66982309. The reversal of 66982303 is 30328966.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66982303 is a prime.

It is equal to p_3950767 and since 66982303 and 3950767 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66982309) 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, 33491151 + 33491152.

It is an arithmetic number, because the mean of its divisors is an integer number (33491152).

Almost surely, 2^66982303 is an apocalyptic number.

66982303 is a deficient number, since it is larger than the sum of its proper divisors (1).

66982303 is an equidigital number, since it uses as much as digits as its factorization.

66982303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 66982303 is about 8184.2716841513. The cubic root of 66982303 is about 406.1190470863.

The spelling of 66982303 in words is "sixty-six million, nine hundred eighty-two thousand, three hundred three".