2768782 has 4 divisors (see below), whose sum is σ = 4153176. Its totient is φ = 1384390.

The previous prime is 2768767. The next prime is 2768783. The reversal of 2768782 is 2878672.

It is a semiprime because it is the product of two primes.

It is a d-powerful number, because it can be written as 2¹⁰ + 7³ + 6⁸ + 8² + 7⁷ + 8⁶ + 2¹¹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2768783) 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 as a sum of consecutive naturals, namely, 692194 + ... + 692197.

It is an arithmetic number, because the mean of its divisors is an integer number (1038294).

2^2768782 is an apocalyptic number.

2768782 is a deficient number, since it is larger than the sum of its proper divisors (1384394).

2768782 is a wasteful number, since it uses less digits than its factorization.

2768782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384393.

The product of its digits is 75264, while the sum is 40.

The square root of 2768782 is about 1663.9657448397. The cubic root of 2768782 is about 140.4202001222.

The spelling of 2768782 in words is "two million, seven hundred sixty-eight thousand, seven hundred eighty-two".