499623 has 4 divisors (see below), whose sum is σ = 666168. Its totient is φ = 333080.

The previous prime is 499621. The next prime is 499633. The reversal of 499623 is 326994.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 499623 - 2¹ = 499621 is a prime.

It is a D-number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 499623.

It is not an unprimeable number, because it can be changed into a prime (499621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83268 + ... + 83273.

It is an arithmetic number, because the mean of its divisors is an integer number (166542).

2⁴⁹⁹⁶²³ is an apocalyptic number.

499623 is a deficient number, since it is larger than the sum of its proper divisors (166545).

499623 is a wasteful number, since it uses less digits than its factorization.

499623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166544.

The product of its digits is 11664, while the sum is 33.

The square root of 499623 is about 706.8401516609. The cubic root of 499623 is about 79.3500992427.

The spelling of 499623 in words is "four hundred ninety-nine thousand, six hundred twenty-three".