499906213 has 4 divisors (see below), whose sum is σ = 501534880. Its totient is φ = 498277548.

The previous prime is 499906189. The next prime is 499906259. The reversal of 499906213 is 312609994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 499906213 - 2²¹ = 497809061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 499906213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499906513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 813873 + ... + 814486.

It is an arithmetic number, because the mean of its divisors is an integer number (125383720).

Almost surely, 2^499906213 is an apocalyptic number.

It is an amenable number.

499906213 is a deficient number, since it is larger than the sum of its proper divisors (1628667).

499906213 is a wasteful number, since it uses less digits than its factorization.

499906213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628666.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 499906213 is about 22358.5825355723. The cubic root of 499906213 is about 793.6508970201.

The spelling of 499906213 in words is "four hundred ninety-nine million, nine hundred six thousand, two hundred thirteen".