8021522 has 8 divisors (see below), whose sum is σ = 12236400. Its totient is φ = 3942724.

The previous prime is 8021471. The next prime is 8021539. The reversal of 8021522 is 2251208.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 8021494 and 8021503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33872 + ... + 34107.

It is an arithmetic number, because the mean of its divisors is an integer number (1529550).

Almost surely, 2^8021522 is an apocalyptic number.

8021522 is a deficient number, since it is larger than the sum of its proper divisors (4214878).

8021522 is a wasteful number, since it uses less digits than its factorization.

8021522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68040.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 8021522 is about 2832.2291573953. The cubic root of 8021522 is about 200.1791894078.

The spelling of 8021522 in words is "eight million, twenty-one thousand, five hundred twenty-two".