8021925 has 36 divisors (see below), whose sum is σ = 14551524. Its totient is φ = 4224000.

The previous prime is 8021911. The next prime is 8021939. The reversal of 8021925 is 5291208.

It is an interprime number because it is at equal distance from previous prime (8021911) and next prime (8021939).

It can be written as a sum of positive squares in 6 ways, for example, as 86436 + 7935489 = 294^2 + 2817^2 .

It is not a de Polignac number, because 8021925 - 2⁸ = 8021669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 22549 + ... + 22901.

It is an arithmetic number, because the mean of its divisors is an integer number (404209).

Almost surely, 2^8021925 is an apocalyptic number.

It is an amenable number.

8021925 is a deficient number, since it is larger than the sum of its proper divisors (6529599).

8021925 is a wasteful number, since it uses less digits than its factorization.

8021925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 8021925 is about 2832.3003018748. The cubic root of 8021925 is about 200.1825416753.

The spelling of 8021925 in words is "eight million, twenty-one thousand, nine hundred twenty-five".