8021872 has 10 divisors (see below), whose sum is σ = 15542408. Its totient is φ = 4010928.

The previous prime is 8021869. The next prime is 8021873. The reversal of 8021872 is 2781208.

It is a self number, because there is not a number n which added to its sum of digits gives 8021872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8021873) 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 as a sum of consecutive naturals, namely, 250668 + ... + 250699.

Almost surely, 2^8021872 is an apocalyptic number.

It is an amenable number.

8021872 is a deficient number, since it is larger than the sum of its proper divisors (7520536).

8021872 is a wasteful number, since it uses less digits than its factorization.

8021872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501375 (or 501369 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 8021872 is about 2832.2909455068. The cubic root of 8021872 is about 200.1821008128.

It can be divided in two parts, 80 and 21872, that added together give a cube (21952 = 28³).

The spelling of 8021872 in words is "eight million, twenty-one thousand, eight hundred seventy-two".