2771801 has 2 divisors, whose sum is σ = 2771802. Its totient is φ = 2771800.

The previous prime is 2771789. The next prime is 2771809. The reversal of 2771801 is 1081772.

2771801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1960000 + 811801 = 1400^2 + 901^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2771801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2771809) 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, 1385900 + 1385901.

It is an arithmetic number, because the mean of its divisors is an integer number (1385901).

2^2771801 is an apocalyptic number.

It is an amenable number.

2771801 is a deficient number, since it is larger than the sum of its proper divisors (1).

2771801 is an equidigital number, since it uses as much as digits as its factorization.

2771801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 26.

The square root of 2771801 is about 1664.8726678038. The cubic root of 2771801 is about 140.4712182953.

The spelling of 2771801 in words is "two million, seven hundred seventy-one thousand, eight hundred one".