6820925 has 12 divisors (see below), whose sum is σ = 8499456. Its totient is φ = 5430000.

The previous prime is 6820921. The next prime is 6820937. The reversal of 6820925 is 5290286.

It is not a de Polignac number, because 6820925 - 2² = 6820921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6820891 and 6820900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6820921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5732 + ... + 6818.

It is an arithmetic number, because the mean of its divisors is an integer number (708288).

Almost surely, 2^6820925 is an apocalyptic number.

It is an amenable number.

6820925 is a deficient number, since it is larger than the sum of its proper divisors (1678531).

6820925 is a wasteful number, since it uses less digits than its factorization.

6820925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348 (or 1343 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 6820925 is about 2611.6900658386. The cubic root of 6820925 is about 189.6477777396.

The spelling of 6820925 in words is "six million, eight hundred twenty thousand, nine hundred twenty-five".