8220041 has 4 divisors (see below), whose sum is σ = 8246784. Its totient is φ = 8193300.

The previous prime is 8220013. The next prime is 8220089. The reversal of 8220041 is 1400228.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8220041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8220341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12905 + ... + 13526.

It is an arithmetic number, because the mean of its divisors is an integer number (2061696).

Almost surely, 2^8220041 is an apocalyptic number.

It is an amenable number.

8220041 is a deficient number, since it is larger than the sum of its proper divisors (26743).

8220041 is a wasteful number, since it uses less digits than its factorization.

8220041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26742.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 8220041 is about 2867.0613875535. The cubic root of 8220041 is about 201.8171154575.

Adding to 8220041 its reverse (1400228), we get a palindrome (9620269).

The spelling of 8220041 in words is "eight million, two hundred twenty thousand, forty-one".