2771257 has 2 divisors, whose sum is σ = 2771258. Its totient is φ = 2771256.

The previous prime is 2771239. The next prime is 2771273. The reversal of 2771257 is 7521772.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2105401 + 665856 = 1451^2 + 816^2 .

It is a cyclic number.

It is not a de Polignac number, because 2771257 - 2¹⁹ = 2246969 is a prime.

It is not a weakly prime, because it can be changed into another prime (2771297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1385628 + 1385629.

It is an arithmetic number, because the mean of its divisors is an integer number (1385629).

2^2771257 is an apocalyptic number.

It is an amenable number.

2771257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2771257 is an equidigital number, since it uses as much as digits as its factorization.

2771257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6860, while the sum is 31.

The square root of 2771257 is about 1664.7092839292. The cubic root of 2771257 is about 140.4620279599.

The spelling of 2771257 in words is "two million, seven hundred seventy-one thousand, two hundred fifty-seven".