499739 has 2 divisors, whose sum is σ = 499740. Its totient is φ = 499738.

The previous prime is 499729. The next prime is 499747. The reversal of 499739 is 937994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 499739 - 2⁸ = 499483 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 499696 and 499705.

It is not a weakly prime, because it can be changed into another prime (499729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249869 + 249870.

It is an arithmetic number, because the mean of its divisors is an integer number (249870).

2⁴⁹⁹⁷³⁹ is an apocalyptic number.

499739 is a deficient number, since it is larger than the sum of its proper divisors (1).

499739 is an equidigital number, since it uses as much as digits as its factorization.

499739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61236, while the sum is 41.

The square root of 499739 is about 706.9222022260. The cubic root of 499739 is about 79.3562398056.

The spelling of 499739 in words is "four hundred ninety-nine thousand, seven hundred thirty-nine".