492213 has 4 divisors (see below), whose sum is σ = 656288. Its totient is φ = 328140.

The previous prime is 492113. The next prime is 492227. The reversal of 492213 is 312294.

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 de Polignac number, because none of the positive numbers 2^k-492213 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 492213.

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 492213.

It is not an unprimeable number, because it can be changed into a prime (492253) 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, 82033 + ... + 82038.

It is an arithmetic number, because the mean of its divisors is an integer number (164072).

2⁴⁹²²¹³ is an apocalyptic number.

It is an amenable number.

492213 is a deficient number, since it is larger than the sum of its proper divisors (164075).

492213 is a wasteful number, since it uses less digits than its factorization.

492213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164074.

The product of its digits is 432, while the sum is 21.

The square root of 492213 is about 701.5789335492. The cubic root of 492213 is about 78.9558584788.

The spelling of 492213 in words is "four hundred ninety-two thousand, two hundred thirteen".