8220541 has 8 divisors (see below), whose sum is σ = 9624384. Its totient is φ = 6874080.

The previous prime is 8220523. The next prime is 8220551. The reversal of 8220541 is 1450228.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8220541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8220551) 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, 14035 + ... + 14608.

It is an arithmetic number, because the mean of its divisors is an integer number (1203048).

Almost surely, 2^8220541 is an apocalyptic number.

It is an amenable number.

8220541 is a deficient number, since it is larger than the sum of its proper divisors (1403843).

8220541 is a wasteful number, since it uses less digits than its factorization.

8220541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28691.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 8220541 is about 2867.1485835234. The cubic root of 8220541 is about 201.8212073475.

Adding to 8220541 its reverse (1450228), we get a palindrome (9670769).

The spelling of 8220541 in words is "eight million, two hundred twenty thousand, five hundred forty-one".