6894389 has 4 divisors (see below), whose sum is σ = 6912960. Its totient is φ = 6875820.

The previous prime is 6894343. The next prime is 6894421. The reversal of 6894389 is 9834986.

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 6894389 - 2⁸ = 6894133 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6893389) 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, 8717 + ... + 9474.

It is an arithmetic number, because the mean of its divisors is an integer number (1728240).

Almost surely, 2^6894389 is an apocalyptic number.

It is an amenable number.

6894389 is a deficient number, since it is larger than the sum of its proper divisors (18571).

6894389 is a wasteful number, since it uses less digits than its factorization.

6894389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18570.

The product of its digits is 373248, while the sum is 47.

The square root of 6894389 is about 2625.7168544990. The cubic root of 6894389 is about 190.3262078550.

The spelling of 6894389 in words is "six million, eight hundred ninety-four thousand, three hundred eighty-nine".