6839390 has 8 divisors (see below), whose sum is σ = 12310920. Its totient is φ = 2735752.

The previous prime is 6839387. The next prime is 6839401. The reversal of 6839390 is 939386.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341960 + ... + 341979.

It is an arithmetic number, because the mean of its divisors is an integer number (1538865).

Almost surely, 2^6839390 is an apocalyptic number.

6839390 is a deficient number, since it is larger than the sum of its proper divisors (5471530).

6839390 is a wasteful number, since it uses less digits than its factorization.

6839390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683946.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 6839390 is about 2615.2227438595. Note that the first 3 decimals coincide. The cubic root of 6839390 is about 189.8187560648.

The spelling of 6839390 in words is "six million, eight hundred thirty-nine thousand, three hundred ninety".