4020017 has 2 divisors, whose sum is σ = 4020018. Its totient is φ = 4020016.

The previous prime is 4020011. The next prime is 4020031. The reversal of 4020017 is 7100204.

It is a happy number.

It is an a-pointer prime, because the next prime (4020031) can be obtained adding 4020017 to its sum of digits (14).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2085136 + 1934881 = 1444^2 + 1391^2 .

It is a cyclic number.

It is not a de Polignac number, because 4020017 - 2¹⁶ = 3954481 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4019983 and 4020010.

It is not a weakly prime, because it can be changed into another prime (4020011) 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 as a sum of consecutive naturals, namely, 2010008 + 2010009.

It is an arithmetic number, because the mean of its divisors is an integer number (2010009).

Almost surely, 2^4020017 is an apocalyptic number.

It is an amenable number.

4020017 is a deficient number, since it is larger than the sum of its proper divisors (1).

4020017 is an equidigital number, since it uses as much as digits as its factorization.

4020017 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 4020017 is about 2004.9980049865. The cubic root of 4020017 is about 159.0044564499.

The spelling of 4020017 in words is "four million, twenty thousand, seventeen".