839213 has 4 divisors (see below), whose sum is σ = 849408. Its totient is φ = 829020.

The previous prime is 839207. The next prime is 839221. The reversal of 839213 is 312938.

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 839213 - 2¹² = 835117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (839203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4973 + ... + 5138.

It is an arithmetic number, because the mean of its divisors is an integer number (212352).

2⁸³⁹²¹³ is an apocalyptic number.

839213 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

839213 is a deficient number, since it is larger than the sum of its proper divisors (10195).

839213 is a wasteful number, since it uses less digits than its factorization.

839213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10194.

The product of its digits is 1296, while the sum is 26.

The square root of 839213 is about 916.0856946815. The cubic root of 839213 is about 94.3244035326.

The spelling of 839213 in words is "eight hundred thirty-nine thousand, two hundred thirteen".