2772705 has 32 divisors (see below), whose sum is σ = 4878720.
Its totient is φ = 1336320.
The previous prime is 2772703. The next prime is 2772709. The reversal of 2772705 is 5072772.
2772705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 2772705 - 21 = 2772703 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2772703) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11385 + ... + 11625.
It is an arithmetic number, because the mean of its divisors is an integer number (152460).
It is the magic constant of a 177 × 177 magic square.
22772705 is an apocalyptic number.
It is an amenable number.
2772705 is a deficient number, since it is larger than the sum of its proper divisors (2106015).
2772705 is a wasteful number, since it uses less digits than its factorization.
2772705 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 321.
The product of its (nonzero) digits is 6860, while the sum is 30.
The square root of 2772705 is about 1665.1441379052.
The cubic root of 2772705 is about 140.4864878112.
The spelling of 2772705 in words is "two million, seven hundred seventy-two thousand, seven hundred five".