499811 has 4 divisors (see below), whose sum is σ = 538272. Its totient is φ = 461352.

The previous prime is 499801. The next prime is 499819. The reversal of 499811 is 118994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 118994 = 2 ⋅59497.

It is a cyclic number.

It is not a de Polignac number, because 499811 - 2⁶ = 499747 is a prime.

It is a super-2 number, since 2×499811² = 499622071442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499819) 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, 19211 + ... + 19236.

It is an arithmetic number, because the mean of its divisors is an integer number (134568).

2⁴⁹⁹⁸¹¹ is an apocalyptic number.

499811 is a deficient number, since it is larger than the sum of its proper divisors (38461).

499811 is a wasteful number, since it uses less digits than its factorization.

499811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38460.

The product of its digits is 2592, while the sum is 32.

The square root of 499811 is about 706.9731253732. The cubic root of 499811 is about 79.3600507114.

The spelling of 499811 in words is "four hundred ninety-nine thousand, eight hundred eleven".