8212686 has 16 divisors (see below), whose sum is σ = 16775424. Its totient is φ = 2679224.

The previous prime is 8212681. The next prime is 8212691. The reversal of 8212686 is 6862128.

It is an interprime number because it is at equal distance from previous prime (8212681) and next prime (8212691).

It is a super-2 number, since 2×8212686² = 134896422669192, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8212681) 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 in 7 ways as a sum of consecutive naturals, for example, 14280 + ... + 14843.

It is an arithmetic number, because the mean of its divisors is an integer number (1048464).

Almost surely, 2^8212686 is an apocalyptic number.

8212686 is an abundant number, since it is smaller than the sum of its proper divisors (8562738).

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

8212686 is a wasteful number, since it uses less digits than its factorization.

8212686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29175.

The product of its digits is 9216, while the sum is 33.

The square root of 8212686 is about 2865.7784282809. The cubic root of 8212686 is about 201.7569045728.

The spelling of 8212686 in words is "eight million, two hundred twelve thousand, six hundred eighty-six".