6725849 has 4 divisors (see below), whose sum is σ = 7243236. Its totient is φ = 6208464.

The previous prime is 6725843. The next prime is 6725861. The reversal of 6725849 is 9485276.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4276624 + 2449225 = 2068^2 + 1565^2 .

It is a cyclic number.

It is not a de Polignac number, because 6725849 - 2⁴ = 6725833 is a prime.

It is a d-powerful number, because it can be written as 6⁸ + 7 + 2¹⁸ + 5² + 8² + 4⁵ + 9⁷ .

It is not an unprimeable number, because it can be changed into a prime (6725843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258674 + ... + 258699.

It is an arithmetic number, because the mean of its divisors is an integer number (1810809).

Almost surely, 2^6725849 is an apocalyptic number.

It is an amenable number.

6725849 is a deficient number, since it is larger than the sum of its proper divisors (517387).

6725849 is a wasteful number, since it uses less digits than its factorization.

6725849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517386.

The product of its digits is 120960, while the sum is 41.

The square root of 6725849 is about 2593.4241843555. The cubic root of 6725849 is about 188.7624929234.

The spelling of 6725849 in words is "six million, seven hundred twenty-five thousand, eight hundred forty-nine".