838213 has 4 divisors (see below), whose sum is σ = 852480. Its totient is φ = 823948.

The previous prime is 838207. The next prime is 838247. The reversal of 838213 is 312838.

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, and also an emirpimes, since its reverse is a distinct semiprime: 312838 = 2 ⋅156419.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-838213 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838613) 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, 7045 + ... + 7162.

It is an arithmetic number, because the mean of its divisors is an integer number (213120).

2⁸³⁸²¹³ is an apocalyptic number.

It is an amenable number.

838213 is a deficient number, since it is larger than the sum of its proper divisors (14267).

838213 is a wasteful number, since it uses less digits than its factorization.

838213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14266.

The product of its digits is 1152, while the sum is 25.

The square root of 838213 is about 915.5397315245. The cubic root of 838213 is about 94.2869232212.

The spelling of 838213 in words is "eight hundred thirty-eight thousand, two hundred thirteen".