495660983 has 2 divisors, whose sum is σ = 495660984. Its totient is φ = 495660982.

The previous prime is 495660943. The next prime is 495660989. The reversal of 495660983 is 389066594.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 495660983 - 2¹⁶ = 495595447 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (495660989) 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, 247830491 + 247830492.

It is an arithmetic number, because the mean of its divisors is an integer number (247830492).

Almost surely, 2^495660983 is an apocalyptic number.

495660983 is a deficient number, since it is larger than the sum of its proper divisors (1).

495660983 is an equidigital number, since it uses as much as digits as its factorization.

495660983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The square root of 495660983 is about 22263.4449939806. Note that the first 3 decimals coincide. The cubic root of 495660983 is about 791.3979323713.

The spelling of 495660983 in words is "four hundred ninety-five million, six hundred sixty thousand, nine hundred eighty-three".