8211925 has 12 divisors (see below), whose sum is σ = 10420960. Its totient is φ = 6415920.

The previous prime is 8211919. The next prime is 8211949. The reversal of 8211925 is 5291128.

It is not a de Polignac number, because 8211925 - 2⁵ = 8211893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8211893 and 8211902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2745 + ... + 4894.

Almost surely, 2^8211925 is an apocalyptic number.

It is an amenable number.

8211925 is a deficient number, since it is larger than the sum of its proper divisors (2209035).

8211925 is a wasteful number, since it uses less digits than its factorization.

8211925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7692 (or 7687 counting only the distinct ones).

The product of its digits is 1440, while the sum is 28.

The square root of 8211925 is about 2865.6456515068. The cubic root of 8211925 is about 201.7506726795.

The spelling of 8211925 in words is "eight million, two hundred eleven thousand, nine hundred twenty-five".