2090017 has 2 divisors, whose sum is σ = 2090018. Its totient is φ = 2090016.

The previous prime is 2090009. The next prime is 2090021. The reversal of 2090017 is 7100902.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1245456 + 844561 = 1116^2 + 919^2 .

It is a cyclic number.

It is not a de Polignac number, because 2090017 - 2³ = 2090009 is a prime.

It is an Ulam number.

2090017 is a lucky number.

It is equal to p₁₅₅₁₃₄ and since 2090017 and 155134 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 2089976 and 2090003.

It is not a weakly prime, because it can be changed into another prime (2090047) 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, 1045008 + 1045009.

It is an arithmetic number, because the mean of its divisors is an integer number (1045009).

2^2090017 is an apocalyptic number.

It is an amenable number.

2090017 is a deficient number, since it is larger than the sum of its proper divisors (1).

2090017 is an equidigital number, since it uses as much as digits as its factorization.

2090017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 2090017 is about 1445.6891090411. The cubic root of 2090017 is about 127.8546731166.

Adding to 2090017 its reverse (7100902), we get a palindrome (9190919).

The spelling of 2090017 in words is "two million, ninety thousand, seventeen".