6809925 has 48 divisors (see below), whose sum is σ = 12142080. Its totient is φ = 3360000.

The previous prime is 6809921. The next prime is 6809927. The reversal of 6809925 is 5299086.

It is a happy number.

It is not a de Polignac number, because 6809925 - 2² = 6809921 is a prime.

6809925 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6809921) 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 47 ways as a sum of consecutive naturals, for example, 67375 + ... + 67475.

It is an arithmetic number, because the mean of its divisors is an integer number (252960).

Almost surely, 2^6809925 is an apocalyptic number.

It is an amenable number.

6809925 is a deficient number, since it is larger than the sum of its proper divisors (5332155).

6809925 is a wasteful number, since it uses less digits than its factorization.

6809925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 6809925 is about 2609.5833000692. The cubic root of 6809925 is about 189.5457755438.

The spelling of 6809925 in words is "six million, eight hundred nine thousand, nine hundred twenty-five".