8021401 has 8 divisors (see below), whose sum is σ = 8471520. Its totient is φ = 7574112.

The previous prime is 8021389. The next prime is 8021413. The reversal of 8021401 is 1041208.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8021389) and next prime (8021413).

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

It is a cyclic number.

It is not a de Polignac number, because 8021401 - 2¹¹ = 8019353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8021471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7941 + ... + 8893.

It is an arithmetic number, because the mean of its divisors is an integer number (1058940).

Almost surely, 2^8021401 is an apocalyptic number.

It is an amenable number.

8021401 is a deficient number, since it is larger than the sum of its proper divisors (450119).

8021401 is a wasteful number, since it uses less digits than its factorization.

8021401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415.

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

The square root of 8021401 is about 2832.2077960489. The cubic root of 8021401 is about 200.1781828738.

Adding to 8021401 its reverse (1041208), we get a palindrome (9062609).

The spelling of 8021401 in words is "eight million, twenty-one thousand, four hundred one".