499399 has 4 divisors (see below), whose sum is σ = 521136. Its totient is φ = 477664.

The previous prime is 499397. The next prime is 499403. The reversal of 499399 is 993994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 993994 = 2 ⋅496997.

It is not a de Polignac number, because 499399 - 2¹ = 499397 is a prime.

It is a super-2 number, since 2×499399² = 498798722402, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10834 + ... + 10879.

It is an arithmetic number, because the mean of its divisors is an integer number (130284).

2⁴⁹⁹³⁹⁹ is an apocalyptic number.

499399 is a deficient number, since it is larger than the sum of its proper divisors (21737).

499399 is a wasteful number, since it uses less digits than its factorization.

499399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21736.

The product of its digits is 78732, while the sum is 43.

The square root of 499399 is about 706.6816822304. The cubic root of 499399 is about 79.3382389139.

It can be divided in two parts, 499 and 399, that added together give a palindrome (898).

The spelling of 499399 in words is "four hundred ninety-nine thousand, three hundred ninety-nine".