8392213 has 4 divisors (see below), whose sum is σ = 8493408. Its totient is φ = 8291020.

The previous prime is 8392211. The next prime is 8392231. The reversal of 8392213 is 3122938.

8392213 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 8392213 - 2¹ = 8392211 is a prime.

It is a Duffinian number.

8392213 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8392211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50473 + ... + 50638.

It is an arithmetic number, because the mean of its divisors is an integer number (2123352).

Almost surely, 2^8392213 is an apocalyptic number.

8392213 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

8392213 is a deficient number, since it is larger than the sum of its proper divisors (101195).

8392213 is a wasteful number, since it uses less digits than its factorization.

8392213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101194.

The product of its digits is 2592, while the sum is 28.

The square root of 8392213 is about 2896.9316526283. The cubic root of 8392213 is about 203.2164370345.

The spelling of 8392213 in words is "eight million, three hundred ninety-two thousand, two hundred thirteen".