2772005 has 8 divisors (see below), whose sum is σ = 3501600. Its totient is φ = 2100816.

The previous prime is 2771999. The next prime is 2772017. The reversal of 2772005 is 5002772.

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

It is a cyclic number.

It is not a de Polignac number, because 2772005 - 2¹⁸ = 2509861 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14495 + ... + 14684.

It is an arithmetic number, because the mean of its divisors is an integer number (437700).

2^2772005 is an apocalyptic number.

It is an amenable number.

2772005 is a deficient number, since it is larger than the sum of its proper divisors (729595).

2772005 is a wasteful number, since it uses less digits than its factorization.

2772005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29203.

The product of its (nonzero) digits is 980, while the sum is 23.

The square root of 2772005 is about 1664.9339326232. The cubic root of 2772005 is about 140.4746643610.

Adding to 2772005 its reverse (5002772), we get a palindrome (7774777).

The spelling of 2772005 in words is "two million, seven hundred seventy-two thousand, five".