4020197 has 2 divisors, whose sum is σ = 4020198. Its totient is φ = 4020196.

The previous prime is 4020167. The next prime is 4020217. The reversal of 4020197 is 7910204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3740356 + 279841 = 1934^2 + 529^2 .

It is a cyclic number.

It is not a de Polignac number, because 4020197 - 2¹⁰ = 4019173 is a prime.

It is a super-3 number, since 3×4020197³ (a number of 21 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4020157) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010098 + 2010099.

It is an arithmetic number, because the mean of its divisors is an integer number (2010099).

Almost surely, 2^4020197 is an apocalyptic number.

It is an amenable number.

4020197 is a deficient number, since it is larger than the sum of its proper divisors (1).

4020197 is an equidigital number, since it uses as much as digits as its factorization.

4020197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 4020197 is about 2005.0428923093. The cubic root of 4020197 is about 159.0068296052.

The spelling of 4020197 in words is "four million, twenty thousand, one hundred ninety-seven".