6894239 has 4 divisors (see below), whose sum is σ = 7521000. Its totient is φ = 6267480.

The previous prime is 6894211. The next prime is 6894241. The reversal of 6894239 is 9324986.

It is a happy number.

6894239 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6894239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6894196 and 6894205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6894259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313364 + ... + 313385.

It is an arithmetic number, because the mean of its divisors is an integer number (1880250).

Almost surely, 2^6894239 is an apocalyptic number.

6894239 is a deficient number, since it is larger than the sum of its proper divisors (626761).

6894239 is a wasteful number, since it uses less digits than its factorization.

6894239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626760.

The product of its digits is 93312, while the sum is 41.

The square root of 6894239 is about 2625.6882907154. The cubic root of 6894239 is about 190.3248275471.

The spelling of 6894239 in words is "six million, eight hundred ninety-four thousand, two hundred thirty-nine".