2730783 has 16 divisors (see below), whose sum is σ = 4023936. Its totient is φ = 1633440.

The previous prime is 2730781. The next prime is 2730797. The reversal of 2730783 is 3870372.

It is not a de Polignac number, because 2730783 - 2¹ = 2730781 is a prime.

It is an Ulam number.

2730783 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2730783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2730781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2241 + ... + 3237.

It is an arithmetic number, because the mean of its divisors is an integer number (251496).

2^2730783 is an apocalyptic number.

2730783 is a deficient number, since it is larger than the sum of its proper divisors (1293153).

2730783 is a wasteful number, since it uses less digits than its factorization.

2730783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 2730783 is about 1652.5080937775. The cubic root of 2730783 is about 139.7748592227.

The spelling of 2730783 in words is "two million, seven hundred thirty thousand, seven hundred eighty-three".