8022001 has 4 divisors (see below), whose sum is σ = 8639092. Its totient is φ = 7404912.

The previous prime is 8021999. The next prime is 8022017. The reversal of 8022001 is 1002208.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2146225 + 5875776 = 1465^2 + 2424^2 .

It is a cyclic number.

It is not a de Polignac number, because 8022001 - 2¹ = 8021999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 617077 = 8022001 / (8 + 0 + 2 + 2 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8022041) 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, 308526 + ... + 308551.

It is an arithmetic number, because the mean of its divisors is an integer number (2159773).

Almost surely, 2^8022001 is an apocalyptic number.

It is an amenable number.

8022001 is a deficient number, since it is larger than the sum of its proper divisors (617091).

8022001 is a wasteful number, since it uses less digits than its factorization.

8022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617090.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 8022001 is about 2832.3137184994. The cubic root of 8022001 is about 200.1831738521.

Adding to 8022001 its reverse (1002208), we get a palindrome (9024209).

The spelling of 8022001 in words is "eight million, twenty-two thousand, one".