499488971 has 2 divisors, whose sum is σ = 499488972. Its totient is φ = 499488970.

The previous prime is 499488961. The next prime is 499488973. The reversal of 499488971 is 179884994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 499488971 - 2²⁶ = 432380107 is a prime.

It is a Sophie Germain prime.

Together with 499488973, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 499488971.

It is not a weakly prime, because it can be changed into another prime (499488973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249744485 + 249744486.

It is an arithmetic number, because the mean of its divisors is an integer number (249744486).

Almost surely, 2^499488971 is an apocalyptic number.

499488971 is a deficient number, since it is larger than the sum of its proper divisors (1).

499488971 is an equidigital number, since it uses as much as digits as its factorization.

499488971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 59.

The square root of 499488971 is about 22349.2498979272. The cubic root of 499488971 is about 793.4300311520.

The spelling of 499488971 in words is "four hundred ninety-nine million, four hundred eighty-eight thousand, nine hundred seventy-one".