2780793 has 12 divisors (see below), whose sum is σ = 4146688. Its totient is φ = 1793880.

The previous prime is 2780779. The next prime is 2780797. The reversal of 2780793 is 3970872.

It is not a de Polignac number, because 2780793 - 2⁴ = 2780777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2780797) 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 11 ways as a sum of consecutive naturals, for example, 4705 + ... + 5262.

2^2780793 is an apocalyptic number.

It is an amenable number.

2780793 is a deficient number, since it is larger than the sum of its proper divisors (1365895).

2780793 is a wasteful number, since it uses less digits than its factorization.

2780793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10004 (or 10001 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 2780793 is about 1667.5709879942. The cubic root of 2780793 is about 140.6229552295.

The spelling of 2780793 in words is "two million, seven hundred eighty thousand, seven hundred ninety-three".