427001 has 2 divisors, whose sum is σ = 427002. Its totient is φ = 427000.

The previous prime is 426997. The next prime is 427013. The reversal of 427001 is 100724.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 336400 + 90601 = 580^2 + 301^2 .

It is a cyclic number.

It is not a de Polignac number, because 427001 - 2² = 426997 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (427081) 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 as a sum of consecutive naturals, namely, 213500 + 213501.

It is an arithmetic number, because the mean of its divisors is an integer number (213501).

2⁴²⁷⁰⁰¹ is an apocalyptic number.

It is an amenable number.

427001 is a deficient number, since it is larger than the sum of its proper divisors (1).

427001 is an equidigital number, since it uses as much as digits as its factorization.

427001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 427001 is about 653.4531352744. The cubic root of 427001 is about 75.3025409086.

Adding to 427001 its reverse (100724), we get a palindrome (527725).

The spelling of 427001 in words is "four hundred twenty-seven thousand, one", and thus it is an iban number.