2730765 has 16 divisors (see below), whose sum is σ = 4390848. Its totient is φ = 1449216.

The previous prime is 2730751. The next prime is 2730769. The reversal of 2730765 is 5670372.

2730765 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 2730765 - 2¹⁵ = 2697997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2730769) 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 15 ways as a sum of consecutive naturals, for example, 4309 + ... + 4901.

It is an arithmetic number, because the mean of its divisors is an integer number (274428).

2^2730765 is an apocalyptic number.

It is an amenable number.

2730765 is a deficient number, since it is larger than the sum of its proper divisors (1660083).

2730765 is a wasteful number, since it uses less digits than its factorization.

2730765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 2730765 is about 1652.5026475017. The cubic root of 2730765 is about 139.7745521127.

It can be divided in two parts, 27307 and 65, that added together give a palindrome (27372).

The spelling of 2730765 in words is "two million, seven hundred thirty thousand, seven hundred sixty-five".