2775697 has 2 divisors, whose sum is σ = 2775698. Its totient is φ = 2775696.

The previous prime is 2775673. The next prime is 2775701. The reversal of 2775697 is 7965772.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2085136 + 690561 = 1444^2 + 831^2 .

It is a cyclic number.

It is not a de Polignac number, because 2775697 - 2⁷ = 2775569 is a prime.

2775697 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2775637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1387848 + 1387849.

It is an arithmetic number, because the mean of its divisors is an integer number (1387849).

2^2775697 is an apocalyptic number.

It is an amenable number.

2775697 is a deficient number, since it is larger than the sum of its proper divisors (1).

2775697 is an equidigital number, since it uses as much as digits as its factorization.

2775697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 185220, while the sum is 43.

The square root of 2775697 is about 1666.0423163894. The cubic root of 2775697 is about 140.5370021968.

The spelling of 2775697 in words is "two million, seven hundred seventy-five thousand, six hundred ninety-seven".