8218572 has 24 divisors (see below), whose sum is σ = 19369392. Its totient is φ = 2712000.

The previous prime is 8218549. The next prime is 8218589. The reversal of 8218572 is 2758128.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2179 + ... + 4602.

It is an arithmetic number, because the mean of its divisors is an integer number (807058).

Almost surely, 2^8218572 is an apocalyptic number.

It is an amenable number.

8218572 is an abundant number, since it is smaller than the sum of its proper divisors (11150820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8218572 is a wasteful number, since it uses less digits than its factorization.

8218572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6889 (or 6887 counting only the distinct ones).

The product of its digits is 8960, while the sum is 33.

The square root of 8218572 is about 2866.8051904516. The cubic root of 8218572 is about 201.8050925246.

The spelling of 8218572 in words is "eight million, two hundred eighteen thousand, five hundred seventy-two".