6981725 has 6 divisors (see below), whose sum is σ = 8657370. Its totient is φ = 5585360.

The previous prime is 6981703. The next prime is 6981731. The reversal of 6981725 is 5271896.

It can be written as a sum of positive squares in 3 ways, for example, as 85849 + 6895876 = 293^2 + 2626^2 .

It is not a de Polignac number, because 6981725 - 2⁶ = 6981661 is a prime.

It is a congruent 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, 139610 + ... + 139659.

It is an arithmetic number, because the mean of its divisors is an integer number (1442895).

Almost surely, 2^6981725 is an apocalyptic number.

It is an amenable number.

6981725 is a deficient number, since it is larger than the sum of its proper divisors (1675645).

6981725 is a wasteful number, since it uses less digits than its factorization.

6981725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279279 (or 279274 counting only the distinct ones).

The product of its digits is 30240, while the sum is 38.

The square root of 6981725 is about 2642.2954036216. The cubic root of 6981725 is about 191.1265026389.

The spelling of 6981725 in words is "six million, nine hundred eighty-one thousand, seven hundred twenty-five".