2805461 has 2 divisors, whose sum is σ = 2805462. Its totient is φ = 2805460.

The previous prime is 2805457. The next prime is 2805487. The reversal of 2805461 is 1645082.

It is an a-pointer prime, because the next prime (2805487) can be obtained adding 2805461 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2640625 + 164836 = 1625^2 + 406^2 .

It is a cyclic number.

It is not a de Polignac number, because 2805461 - 2² = 2805457 is a prime.

It is a super-2 number, since 2×2805461² = 15741222845042, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2805461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2805161) 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, 1402730 + 1402731.

It is an arithmetic number, because the mean of its divisors is an integer number (1402731).

2^2805461 is an apocalyptic number.

It is an amenable number.

2805461 is a deficient number, since it is larger than the sum of its proper divisors (1).

2805461 is an equidigital number, since it uses as much as digits as its factorization.

2805461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 2805461 is about 1674.9510440607. The cubic root of 2805461 is about 141.0375467971.

The spelling of 2805461 in words is "two million, eight hundred five thousand, four hundred sixty-one".