2772065 has 8 divisors (see below), whose sum is σ = 3340008. Its totient is φ = 2208640.

The previous prime is 2772061. The next prime is 2772067. The reversal of 2772065 is 5602772.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 183184 + 2588881 = 428^2 + 1609^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2772065 - 2² = 2772061 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2772061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 419 + ... + 2391.

It is an arithmetic number, because the mean of its divisors is an integer number (417501).

2^2772065 is an apocalyptic number.

It is an amenable number.

2772065 is a deficient number, since it is larger than the sum of its proper divisors (567943).

2772065 is a wasteful number, since it uses less digits than its factorization.

2772065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2259.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 2772065 is about 1664.9519512587. The cubic root of 2772065 is about 140.4756778776.

The spelling of 2772065 in words is "two million, seven hundred seventy-two thousand, sixty-five".