8196215 has 4 divisors (see below), whose sum is σ = 9835464. Its totient is φ = 6556968.

The previous prime is 8196173. The next prime is 8196217. The reversal of 8196215 is 5126918.

8196215 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8196215 - 2⁸ = 8195959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8196217) 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 3 ways as a sum of consecutive naturals, for example, 819617 + ... + 819626.

It is an arithmetic number, because the mean of its divisors is an integer number (2458866).

Almost surely, 2^8196215 is an apocalyptic number.

8196215 is a deficient number, since it is larger than the sum of its proper divisors (1639249).

8196215 is a wasteful number, since it uses less digits than its factorization.

8196215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639248.

The product of its digits is 4320, while the sum is 32.

The square root of 8196215 is about 2862.9032467060. The cubic root of 8196215 is about 201.6219360605.

The spelling of 8196215 in words is "eight million, one hundred ninety-six thousand, two hundred fifteen".