6825842 has 4 divisors (see below), whose sum is σ = 10238766. Its totient is φ = 3412920.

The previous prime is 6825829. The next prime is 6825877. The reversal of 6825842 is 2485286.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2485286 = 2 ⋅1242643.

It can be written as a sum of positive squares in only one way, i.e., 4165681 + 2660161 = 2041^2 + 1631^2 .

It is an Ulam number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1706459 + ... + 1706462.

Almost surely, 2^6825842 is an apocalyptic number.

6825842 is a deficient number, since it is larger than the sum of its proper divisors (3412924).

6825842 is a wasteful number, since it uses less digits than its factorization.

6825842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3412923.

The product of its digits is 30720, while the sum is 35.

The square root of 6825842 is about 2612.6312407227. The cubic root of 6825842 is about 189.6933372565.

It can be divided in two parts, 6825 and 842, that added together give a palindrome (7667).

The spelling of 6825842 in words is "six million, eight hundred twenty-five thousand, eight hundred forty-two".