6997825 has 6 divisors (see below), whose sum is σ = 8677334. Its totient is φ = 5598240.

The previous prime is 6997817. The next prime is 6997841. The reversal of 6997825 is 5287996.

It can be written as a sum of positive squares in 3 ways, for example, as 505521 + 6492304 = 711^2 + 2548^2 .

It is not a de Polignac number, because 6997825 - 2³ = 6997817 is a prime.

It is a Duffinian 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 in 5 ways as a sum of consecutive naturals, for example, 139932 + ... + 139981.

Almost surely, 2^6997825 is an apocalyptic number.

It is an amenable number.

6997825 is a deficient number, since it is larger than the sum of its proper divisors (1679509).

6997825 is a wasteful number, since it uses less digits than its factorization.

6997825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279923 (or 279918 counting only the distinct ones).

The product of its digits is 272160, while the sum is 46.

The square root of 6997825 is about 2645.3402427665. The cubic root of 6997825 is about 191.2733037233.

The spelling of 6997825 in words is "six million, nine hundred ninety-seven thousand, eight hundred twenty-five".