500941993 has 2 divisors, whose sum is σ = 500941994. Its totient is φ = 500941992.

The previous prime is 500941981. The next prime is 500941997. The reversal of 500941993 is 399149005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 343991209 + 156950784 = 18547^2 + 12528^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-500941993 is a prime.

It is not a weakly prime, because it can be changed into another prime (500941997) 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, 250470996 + 250470997.

It is an arithmetic number, because the mean of its divisors is an integer number (250470997).

Almost surely, 2^500941993 is an apocalyptic number.

It is an amenable number.

500941993 is a deficient number, since it is larger than the sum of its proper divisors (1).

500941993 is an equidigital number, since it uses as much as digits as its factorization.

500941993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 500941993 is about 22381.7334672719. The cubic root of 500941993 is about 794.1986535196.

The spelling of 500941993 in words is "five hundred million, nine hundred forty-one thousand, nine hundred ninety-three".