4063021 has 2 divisors, whose sum is σ = 4063022. Its totient is φ = 4063020.

The previous prime is 4063013. The next prime is 4063061. The reversal of 4063021 is 1203604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3553225 + 509796 = 1885^2 + 714^2 .

It is a cyclic number.

It is not a de Polignac number, because 4063021 - 2³ = 4063013 is a prime.

4063021 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4062986 and 4063004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4063061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2031510 + 2031511.

It is an arithmetic number, because the mean of its divisors is an integer number (2031511).

Almost surely, 2^4063021 is an apocalyptic number.

It is an amenable number.

4063021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4063021 is an equidigital number, since it uses as much as digits as its factorization.

4063021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 4063021 is about 2015.6936771246. The cubic root of 4063021 is about 159.5694282768.

Adding to 4063021 its reverse (1203604), we get a palindrome (5266625).

The spelling of 4063021 in words is "four million, sixty-three thousand, twenty-one".