5000491 has 2 divisors, whose sum is σ = 5000492. Its totient is φ = 5000490.

The previous prime is 5000473. The next prime is 5000503. The reversal of 5000491 is 1940005.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5000491 is a prime.

5000491 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (5000791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500245 + 2500246.

It is an arithmetic number, because the mean of its divisors is an integer number (2500246).

Almost surely, 2^5000491 is an apocalyptic number.

5000491 is a deficient number, since it is larger than the sum of its proper divisors (1).

5000491 is an equidigital number, since it uses as much as digits as its factorization.

5000491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 5000491 is about 2236.1777657422. The cubic root of 5000491 is about 171.0031918057.

Adding to 5000491 its reverse (1940005), we get a palindrome (6940496).

The spelling of 5000491 in words is "five million, four hundred ninety-one", and thus it is an aban number.