82058221 has 8 divisors (see below), whose sum is σ = 93847104. Its totient is φ = 70285920.

The previous prime is 82058189. The next prime is 82058231. The reversal of 82058221 is 12285028.

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

It is a cyclic number.

It is not a de Polignac number, because 82058221 - 2⁵ = 82058189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82058221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82058231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9441 + ... + 15913.

It is an arithmetic number, because the mean of its divisors is an integer number (11730888).

Almost surely, 2^82058221 is an apocalyptic number.

It is an amenable number.

82058221 is a deficient number, since it is larger than the sum of its proper divisors (11788883).

82058221 is a wasteful number, since it uses less digits than its factorization.

82058221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8291.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 82058221 is about 9058.5992846576. The cubic root of 82058221 is about 434.5509454129.

The spelling of 82058221 in words is "eighty-two million, fifty-eight thousand, two hundred twenty-one".