8420011 has 4 divisors (see below), whose sum is σ = 8463832. Its totient is φ = 8376192.

The previous prime is 8419993. The next prime is 8420029. The reversal of 8420011 is 1100248.

It is a happy number.

8420011 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (8419993) and next prime (8420029).

It is a cyclic number.

It is not a de Polignac number, because 8420011 - 2¹¹ = 8417963 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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21621 + ... + 22006.

It is an arithmetic number, because the mean of its divisors is an integer number (2115958).

Almost surely, 2^8420011 is an apocalyptic number.

8420011 is a deficient number, since it is larger than the sum of its proper divisors (43821).

8420011 is a wasteful number, since it uses less digits than its factorization.

8420011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43820.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 8420011 is about 2901.7255211339. The cubic root of 8420011 is about 203.4405648377.

Adding to 8420011 its reverse (1100248), we get a palindrome (9520259).

The spelling of 8420011 in words is "eight million, four hundred twenty thousand, eleven".