8220941 has 4 divisors (see below), whose sum is σ = 8229084. Its totient is φ = 8212800.

The previous prime is 8220937. The next prime is 8221009. The reversal of 8220941 is 1490228.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 7043716 + 1177225 = 2654^2 + 1085^2 .

It is a cyclic number.

It is not a de Polignac number, because 8220941 - 2² = 8220937 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 8220941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8220931) 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, 2300 + ... + 4661.

It is an arithmetic number, because the mean of its divisors is an integer number (2057271).

Almost surely, 2^8220941 is an apocalyptic number.

It is an amenable number.

8220941 is a deficient number, since it is larger than the sum of its proper divisors (8143).

8220941 is a wasteful number, since it uses less digits than its factorization.

8220941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8142.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 8220941 is about 2867.2183383900. The cubic root of 8220941 is about 201.8244807401.

The spelling of 8220941 in words is "eight million, two hundred twenty thousand, nine hundred forty-one".