8420001 has 8 divisors (see below), whose sum is σ = 11714880. Its totient is φ = 5369232.

The previous prime is 8419993. The next prime is 8420029. The reversal of 8420001 is 1000248.

8420001 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 8420001 - 2³ = 8419993 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 60946 + ... + 61083.

It is an arithmetic number, because the mean of its divisors is an integer number (1464360).

Almost surely, 2^8420001 is an apocalyptic number.

It is an amenable number.

8420001 is a deficient number, since it is larger than the sum of its proper divisors (3294879).

8420001 is a wasteful number, since it uses less digits than its factorization.

8420001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122055.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 8420001 is about 2901.7237980208. The cubic root of 8420001 is about 203.4404842991.

Adding to 8420001 its reverse (1000248), we get a palindrome (9420249).

The spelling of 8420001 in words is "eight million, four hundred twenty thousand, one".