2004917 has 2 divisors, whose sum is σ = 2004918. Its totient is φ = 2004916.

The previous prime is 2004911. The next prime is 2004931. The reversal of 2004917 is 7194002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1661521 + 343396 = 1289^2 + 586^2 .

It is a cyclic number.

It is not a de Polignac number, because 2004917 - 2⁴ = 2004901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2004892 and 2004901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2004911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002458 + 1002459.

It is an arithmetic number, because the mean of its divisors is an integer number (1002459).

2^2004917 is an apocalyptic number.

It is an amenable number.

2004917 is a deficient number, since it is larger than the sum of its proper divisors (1).

2004917 is an equidigital number, since it uses as much as digits as its factorization.

2004917 is an evil number, because the sum of its binary digits is even.

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

The square root of 2004917 is about 1415.9509172284. The cubic root of 2004917 is about 126.0952710211.

Adding to 2004917 its reverse (7194002), we get a palindrome (9198919).

The spelling of 2004917 in words is "two million, four thousand, nine hundred seventeen".