2771965 has 16 divisors (see below), whose sum is σ = 3934080. Its totient is φ = 1834560.

The previous prime is 2771963. The next prime is 2771971. The reversal of 2771965 is 5691772.

It is not a de Polignac number, because 2771965 - 2¹ = 2771963 is a prime.

It is a super-2 number, since 2×2771965² = 15367579922450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2771963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351 + ... + 2380.

It is an arithmetic number, because the mean of its divisors is an integer number (245880).

2^2771965 is an apocalyptic number.

It is an amenable number.

2771965 is a deficient number, since it is larger than the sum of its proper divisors (1162115).

2771965 is a wasteful number, since it uses less digits than its factorization.

2771965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2772.

The product of its digits is 26460, while the sum is 37.

The square root of 2771965 is about 1664.9219200911. The cubic root of 2771965 is about 140.4739886752.

The spelling of 2771965 in words is "two million, seven hundred seventy-one thousand, nine hundred sixty-five".