500978983 has 2 divisors, whose sum is σ = 500978984. Its totient is φ = 500978982.

The previous prime is 500978963. The next prime is 500978999. The reversal of 500978983 is 389879005.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-500978983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500978923) 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, 250489491 + 250489492.

It is an arithmetic number, because the mean of its divisors is an integer number (250489492).

Almost surely, 2^500978983 is an apocalyptic number.

500978983 is a deficient number, since it is larger than the sum of its proper divisors (1).

500978983 is an equidigital number, since it uses as much as digits as its factorization.

500978983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 500978983 is about 22382.5597955194. The cubic root of 500978983 is about 794.2182011489.

The spelling of 500978983 in words is "five hundred million, nine hundred seventy-eight thousand, nine hundred eighty-three".