7882221 has 8 divisors (see below), whose sum is σ = 10793824. Its totient is φ = 5112720.

The previous prime is 7882219. The next prime is 7882243. The reversal of 7882221 is 1222887.

It is a happy number.

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

It is not a de Polignac number, because 7882221 - 2¹ = 7882219 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 (7882211) 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 7 ways as a sum of consecutive naturals, for example, 35395 + ... + 35616.

It is an arithmetic number, because the mean of its divisors is an integer number (1349228).

Almost surely, 2^7882221 is an apocalyptic number.

It is an amenable number.

7882221 is a deficient number, since it is larger than the sum of its proper divisors (2911603).

7882221 is a wasteful number, since it uses less digits than its factorization.

7882221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71051.

The product of its digits is 3584, while the sum is 30.

The square root of 7882221 is about 2807.5293408974. The cubic root of 7882221 is about 199.0136519173.

The spelling of 7882221 in words is "seven million, eight hundred eighty-two thousand, two hundred twenty-one".