2771401 has 2 divisors, whose sum is σ = 2771402. Its totient is φ = 2771400.

The previous prime is 2771389. The next prime is 2771437. The reversal of 2771401 is 1041772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2253001 + 518400 = 1501^2 + 720^2 .

It is a cyclic number.

It is not a de Polignac number, because 2771401 - 2⁷ = 2771273 is a prime.

2771401 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2771471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1385700 + 1385701.

It is an arithmetic number, because the mean of its divisors is an integer number (1385701).

2^2771401 is an apocalyptic number.

2771401 is the 745-th centered decagonal number.

It is an amenable number.

2771401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2771401 is an equidigital number, since it uses as much as digits as its factorization.

2771401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 2771401 is about 1664.7525341624. The cubic root of 2771401 is about 140.4644608127.

The spelling of 2771401 in words is "two million, seven hundred seventy-one thousand, four hundred one".