8211982 has 8 divisors (see below), whose sum is σ = 12333456. Its totient is φ = 4100832.

The previous prime is 8211977. The next prime is 8211991. The reversal of 8211982 is 2891128.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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, 123 + ... + 4054.

It is an arithmetic number, because the mean of its divisors is an integer number (1541682).

Almost surely, 2^8211982 is an apocalyptic number.

8211982 is a deficient number, since it is larger than the sum of its proper divisors (4121474).

8211982 is a wasteful number, since it uses less digits than its factorization.

8211982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5162.

The product of its digits is 2304, while the sum is 31.

The square root of 8211982 is about 2865.6555968923. The cubic root of 8211982 is about 201.7511394707.

The spelling of 8211982 in words is "eight million, two hundred eleven thousand, nine hundred eighty-two".