499729 has 2 divisors, whose sum is σ = 499730. Its totient is φ = 499728.

The previous prime is 499717. The next prime is 499739. The reversal of 499729 is 927994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 497025 + 2704 = 705^2 + 52^2 .

It is a cyclic number.

It is not a de Polignac number, because 499729 - 2⁷ = 499601 is a prime.

499729 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 499691 and 499700.

It is not a weakly prime, because it can be changed into another prime (499739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249864 + 249865.

It is an arithmetic number, because the mean of its divisors is an integer number (249865).

2⁴⁹⁹⁷²⁹ is an apocalyptic number.

It is an amenable number.

499729 is a deficient number, since it is larger than the sum of its proper divisors (1).

499729 is an equidigital number, since it uses as much as digits as its factorization.

499729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 40.

The square root of 499729 is about 706.9151292765. The cubic root of 499729 is about 79.3557104841.

The spelling of 499729 in words is "four hundred ninety-nine thousand, seven hundred twenty-nine".