499844893 has 2 divisors, whose sum is σ = 499844894. Its totient is φ = 499844892.

The previous prime is 499844869. The next prime is 499844903. The reversal of 499844893 is 398448994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 420332004 + 79512889 = 20502^2 + 8917^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499844893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499841893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249922446 + 249922447.

It is an arithmetic number, because the mean of its divisors is an integer number (249922447).

Almost surely, 2^499844893 is an apocalyptic number.

It is an amenable number.

499844893 is a deficient number, since it is larger than the sum of its proper divisors (1).

499844893 is an equidigital number, since it uses as much as digits as its factorization.

499844893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8957952, while the sum is 58.

The square root of 499844893 is about 22357.2112080197. The cubic root of 499844893 is about 793.6184451577.

The spelling of 499844893 in words is "four hundred ninety-nine million, eight hundred forty-four thousand, eight hundred ninety-three".