839397 has 8 divisors (see below), whose sum is σ = 1205344. Its totient is φ = 516528.

The previous prime is 839381. The next prime is 839413. The reversal of 839397 is 793938.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (839381) and next prime (839413).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 839397 - 2⁴ = 839381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 21523 = 839397 / (8 + 3 + 9 + 3 + 9 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (839327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10723 + ... + 10800.

It is an arithmetic number, because the mean of its divisors is an integer number (150668).

2⁸³⁹³⁹⁷ is an apocalyptic number.

It is an amenable number.

839397 is a deficient number, since it is larger than the sum of its proper divisors (365947).

839397 is a wasteful number, since it uses less digits than its factorization.

839397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21539.

The product of its digits is 40824, while the sum is 39.

The square root of 839397 is about 916.1861164632. The cubic root of 839397 is about 94.3312966662.

The spelling of 839397 in words is "eight hundred thirty-nine thousand, three hundred ninety-seven".