2705761 has 2 divisors, whose sum is σ = 2705762. Its totient is φ = 2705760.

The previous prime is 2705741. The next prime is 2705779. The reversal of 2705761 is 1675072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2702736 + 3025 = 1644^2 + 55^2 .

It is a cyclic number.

It is not a de Polignac number, because 2705761 - 2⁹ = 2705249 is a prime.

It is a super-2 number, since 2×2705761² = 14642285178242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2705741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1352880 + 1352881.

It is an arithmetic number, because the mean of its divisors is an integer number (1352881).

2^2705761 is an apocalyptic number.

It is an amenable number.

2705761 is a deficient number, since it is larger than the sum of its proper divisors (1).

2705761 is an equidigital number, since it uses as much as digits as its factorization.

2705761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 2705761 is about 1644.9197548817. The cubic root of 2705761 is about 139.3466324055.

The spelling of 2705761 in words is "two million, seven hundred five thousand, seven hundred sixty-one".