499810849 has 2 divisors, whose sum is σ = 499810850. Its totient is φ = 499810848.

The previous prime is 499810813. The next prime is 499810873. The reversal of 499810849 is 948018994.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 387302400 + 112508449 = 19680^2 + 10607^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499810849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 499810796 and 499810805.

It is not a weakly prime, because it can be changed into another prime (499810879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249905424 + 249905425.

It is an arithmetic number, because the mean of its divisors is an integer number (249905425).

Almost surely, 2^499810849 is an apocalyptic number.

It is an amenable number.

499810849 is a deficient number, since it is larger than the sum of its proper divisors (1).

499810849 is an equidigital number, since it uses as much as digits as its factorization.

499810849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 52.

The square root of 499810849 is about 22356.4498299708. The cubic root of 499810849 is about 793.6004271951.

The spelling of 499810849 in words is "four hundred ninety-nine million, eight hundred ten thousand, eight hundred forty-nine".