6904385 has 8 divisors (see below), whose sum is σ = 8509416. Its totient is φ = 5374080.

The previous prime is 6904379. The next prime is 6904421. The reversal of 6904385 is 5834096.

It can be written as a sum of positive squares in 4 ways, for example, as 3094081 + 3810304 = 1759^2 + 1952^2 .

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

It is not a de Polignac number, because 6904385 - 2⁴ = 6904369 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18476 + ... + 18845.

It is an arithmetic number, because the mean of its divisors is an integer number (1063677).

Almost surely, 2^6904385 is an apocalyptic number.

It is an amenable number.

6904385 is a deficient number, since it is larger than the sum of its proper divisors (1605031).

6904385 is a wasteful number, since it uses less digits than its factorization.

6904385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37363.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 6904385 is about 2627.6196452303. The cubic root of 6904385 is about 190.4181464856.

The spelling of 6904385 in words is "six million, nine hundred four thousand, three hundred eighty-five".