8166213 has 12 divisors (see below), whose sum is σ = 12868128. Its totient is φ = 4949160.

The previous prime is 8166211. The next prime is 8166217. The reversal of 8166213 is 3126618.

8166213 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8166213 - 2¹ = 8166211 is a prime.

It is a super-2 number, since 2×8166213² = 133374069522738, which contains 22 as substring.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8166211) 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 11 ways as a sum of consecutive naturals, for example, 41145 + ... + 41342.

It is an arithmetic number, because the mean of its divisors is an integer number (1072344).

Almost surely, 2^8166213 is an apocalyptic number.

It is an amenable number.

8166213 is a deficient number, since it is larger than the sum of its proper divisors (4701915).

8166213 is a wasteful number, since it uses less digits than its factorization.

8166213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82504 (or 82501 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 8166213 is about 2857.6586570128. The cubic root of 8166213 is about 201.3756249208.

The spelling of 8166213 in words is "eight million, one hundred sixty-six thousand, two hundred thirteen".