6858725 has 6 divisors (see below), whose sum is σ = 8504850. Its totient is φ = 5486960.

The previous prime is 6858721. The next prime is 6858737. The reversal of 6858725 is 5278586.

It can be written as a sum of positive squares in 3 ways, for example, as 391876 + 6466849 = 626^2 + 2543^2 .

It is not a de Polignac number, because 6858725 - 2² = 6858721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6858721) 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 5 ways as a sum of consecutive naturals, for example, 137150 + ... + 137199.

It is an arithmetic number, because the mean of its divisors is an integer number (1417475).

Almost surely, 2^6858725 is an apocalyptic number.

It is an amenable number.

6858725 is a deficient number, since it is larger than the sum of its proper divisors (1646125).

6858725 is a wasteful number, since it uses less digits than its factorization.

6858725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274359 (or 274354 counting only the distinct ones).

The product of its digits is 134400, while the sum is 41.

The square root of 6858725 is about 2618.9167608002. The cubic root of 6858725 is about 189.9974607232.

The spelling of 6858725 in words is "six million, eight hundred fifty-eight thousand, seven hundred twenty-five".