8212566 has 8 divisors (see below), whose sum is σ = 16425144. Its totient is φ = 2737520.

The previous prime is 8212553. The next prime is 8212583. The reversal of 8212566 is 6652128.

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

8212566 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 684375 + ... + 684386.

It is an arithmetic number, because the mean of its divisors is an integer number (2053143).

Almost surely, 2^8212566 is an apocalyptic number.

8212566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

8212566 is a wasteful number, since it uses less digits than its factorization.

8212566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368766.

The product of its digits is 5760, while the sum is 30.

The square root of 8212566 is about 2865.7574914846. The cubic root of 8212566 is about 201.7559219082.

It can be divided in two parts, 8212 and 566, that added together give a palindrome (8778).

The spelling of 8212566 in words is "eight million, two hundred twelve thousand, five hundred sixty-six".