499726 has 4 divisors (see below), whose sum is σ = 749592. Its totient is φ = 249862.

The previous prime is 499717. The next prime is 499729. The reversal of 499726 is 627994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 627994 = 2 ⋅313997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499729) by changing a digit.

499726 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124930 + ... + 124933.

It is an arithmetic number, because the mean of its divisors is an integer number (187398).

2⁴⁹⁹⁷²⁶ is an apocalyptic number.

499726 is a deficient number, since it is larger than the sum of its proper divisors (249866).

499726 is a wasteful number, since it uses less digits than its factorization.

499726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249865.

The product of its digits is 27216, while the sum is 37.

The square root of 499726 is about 706.9130073779. The cubic root of 499726 is about 79.3555516863.

It can be divided in two parts, 499 and 726, that added together give a triangular number (1225 = T₄₉).

The spelling of 499726 in words is "four hundred ninety-nine thousand, seven hundred twenty-six".