2771397 has 18 divisors (see below), whose sum is σ = 4229862. Its totient is φ = 1748304.

The previous prime is 2771389. The next prime is 2771401. The reversal of 2771397 is 7931772.

It can be written as a sum of positive squares in only one way, i.e., 1718721 + 1052676 = 1311^2 + 1026^2 .

It is not a de Polignac number, because 2771397 - 2³ = 2771389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2771297) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2823 + ... + 3675.

2^2771397 is an apocalyptic number.

It is an amenable number.

2771397 is a deficient number, since it is larger than the sum of its proper divisors (1458465).

2771397 is a wasteful number, since it uses less digits than its factorization.

2771397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897 (or 875 counting only the distinct ones).

The product of its digits is 18522, while the sum is 36.

The square root of 2771397 is about 1664.7513327822. The cubic root of 2771397 is about 140.4643932346.

The spelling of 2771397 in words is "two million, seven hundred seventy-one thousand, three hundred ninety-seven".