8401001 has 6 divisors (see below), whose sum is σ = 9772650. Its totient is φ = 7200816.

The previous prime is 8400979. The next prime is 8401013. The reversal of 8401001 is 1001048.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7840000 + 561001 = 2800^2 + 749^2 .

It is not a de Polignac number, because 8401001 - 2⁶ = 8400937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8401051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 85676 + ... + 85773.

It is an arithmetic number, because the mean of its divisors is an integer number (1628775).

Almost surely, 2^8401001 is an apocalyptic number.

It is an amenable number.

8401001 is a deficient number, since it is larger than the sum of its proper divisors (1371649).

8401001 is a wasteful number, since it uses less digits than its factorization.

8401001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171463 (or 171456 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 8401001 is about 2898.4480329997. The cubic root of 8401001 is about 203.2873457466.

Adding to 8401001 its reverse (1001048), we get a palindrome (9402049).

The spelling of 8401001 in words is "eight million, four hundred one thousand, one".