499444859 has 2 divisors, whose sum is σ = 499444860. Its totient is φ = 499444858.

The previous prime is 499444831. The next prime is 499444861. The reversal of 499444859 is 958444994.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499444859 is a prime.

Together with 499444861, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (499444879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249722429 + 249722430.

It is an arithmetic number, because the mean of its divisors is an integer number (249722430).

Almost surely, 2^499444859 is an apocalyptic number.

499444859 is a deficient number, since it is larger than the sum of its proper divisors (1).

499444859 is an equidigital number, since it uses as much as digits as its factorization.

499444859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7464960, while the sum is 56.

The square root of 499444859 is about 22348.2629973786. The cubic root of 499444859 is about 793.4066734017.

The spelling of 499444859 in words is "four hundred ninety-nine million, four hundred forty-four thousand, eight hundred fifty-nine".