8420041 has 4 divisors (see below), whose sum is σ = 9622912. Its totient is φ = 7217172.

The previous prime is 8420029. The next prime is 8420051. The reversal of 8420041 is 1400248.

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 not a de Polignac number, because 8420041 - 2¹¹ = 8417993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8420051) 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, 601425 + ... + 601438.

It is an arithmetic number, because the mean of its divisors is an integer number (2405728).

Almost surely, 2^8420041 is an apocalyptic number.

It is an amenable number.

8420041 is a deficient number, since it is larger than the sum of its proper divisors (1202871).

8420041 is a wasteful number, since it uses less digits than its factorization.

8420041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202870.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 8420041 is about 2901.7306904673. The cubic root of 8420041 is about 203.4408064529.

Adding to 8420041 its reverse (1400248), we get a palindrome (9820289).

The spelling of 8420041 in words is "eight million, four hundred twenty thousand, forty-one".