2904217 has 2 divisors, whose sum is σ = 2904218. Its totient is φ = 2904216.

The previous prime is 2904211. The next prime is 2904221. The reversal of 2904217 is 7124092.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2893401 + 10816 = 1701^2 + 104^2 .

It is a cyclic number.

It is not a de Polignac number, because 2904217 - 2¹⁹ = 2379929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2904191 and 2904200.

It is not a weakly prime, because it can be changed into another prime (2904211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1452108 + 1452109.

It is an arithmetic number, because the mean of its divisors is an integer number (1452109).

2^2904217 is an apocalyptic number.

It is an amenable number.

2904217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2904217 is an equidigital number, since it uses as much as digits as its factorization.

2904217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 2904217 is about 1704.1763406408. The cubic root of 2904217 is about 142.6734033513.

The spelling of 2904217 in words is "two million, nine hundred four thousand, two hundred seventeen".