499985023 has 2 divisors, whose sum is σ = 499985024. Its totient is φ = 499985022.

The previous prime is 499984997. The next prime is 499985029. The reversal of 499985023 is 320589994.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499985023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499985029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249992511 + 249992512.

It is an arithmetic number, because the mean of its divisors is an integer number (249992512).

Almost surely, 2^499985023 is an apocalyptic number.

499985023 is a deficient number, since it is larger than the sum of its proper divisors (1).

499985023 is an equidigital number, since it uses as much as digits as its factorization.

499985023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 699840, while the sum is 49.

The square root of 499985023 is about 22360.3448765890. The cubic root of 499985023 is about 793.6926010698.

The spelling of 499985023 in words is "four hundred ninety-nine million, nine hundred eighty-five thousand, twenty-three".