82223646 has 8 divisors (see below), whose sum is σ = 164447304. Its totient is φ = 27407880.

The previous prime is 82223599. The next prime is 82223651. The reversal of 82223646 is 64632228.

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

82223646 is an admirable number.

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 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, 6851965 + ... + 6851976.

It is an arithmetic number, because the mean of its divisors is an integer number (20555913).

Almost surely, 2^82223646 is an apocalyptic number.

82223646 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.

82223646 is a wasteful number, since it uses less digits than its factorization.

82223646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13703946.

The product of its digits is 27648, while the sum is 33.

The square root of 82223646 is about 9067.7255141518. The cubic root of 82223646 is about 434.8427599216.

The spelling of 82223646 in words is "eighty-two million, two hundred twenty-three thousand, six hundred forty-six".