499488973 has 2 divisors, whose sum is σ = 499488974. Its totient is φ = 499488972.

The previous prime is 499488971. The next prime is 499489007. The reversal of 499488973 is 379884994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 266407684 + 233081289 = 16322^2 + 15267^2 .

It is a cyclic number.

It is not a de Polignac number, because 499488973 - 2¹ = 499488971 is a prime.

Together with 499488971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499488971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249744486 + 249744487.

It is an arithmetic number, because the mean of its divisors is an integer number (249744487).

Almost surely, 2^499488973 is an apocalyptic number.

It is an amenable number.

499488973 is a deficient number, since it is larger than the sum of its proper divisors (1).

499488973 is an equidigital number, since it uses as much as digits as its factorization.

499488973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15676416, while the sum is 61.

The square root of 499488973 is about 22349.2499426715. The cubic root of 499488973 is about 793.4300322109.

The spelling of 499488973 in words is "four hundred ninety-nine million, four hundred eighty-eight thousand, nine hundred seventy-three".