6904057 has 8 divisors (see below), whose sum is σ = 7384392. Its totient is φ = 6432000.

The previous prime is 6904039. The next prime is 6904063. The reversal of 6904057 is 7504096.

It can be written as a sum of positive squares in 4 ways, for example, as 1971216 + 4932841 = 1404^2 + 2221^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6904057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6904067) 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 7 ways as a sum of consecutive naturals, for example, 294 + ... + 3727.

It is an arithmetic number, because the mean of its divisors is an integer number (923049).

Almost surely, 2^6904057 is an apocalyptic number.

It is an amenable number.

6904057 is a deficient number, since it is larger than the sum of its proper divisors (480335).

6904057 is a wasteful number, since it uses less digits than its factorization.

6904057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4139.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 6904057 is about 2627.5572305851. The cubic root of 6904057 is about 190.4151311004.

The spelling of 6904057 in words is "six million, nine hundred four thousand, fifty-seven".