2787795 has 24 divisors (see below), whose sum is σ = 4953312. Its totient is φ = 1449600.

The previous prime is 2787781. The next prime is 2787859. The reversal of 2787795 is 5977872.

2787795 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 2787795 - 2¹³ = 2779603 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

2787795 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2787795.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1090 + ... + 2600.

It is an arithmetic number, because the mean of its divisors is an integer number (206388).

2^2787795 is an apocalyptic number.

2787795 is a deficient number, since it is larger than the sum of its proper divisors (2165517).

2787795 is a wasteful number, since it uses less digits than its factorization.

2787795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1563 (or 1560 counting only the distinct ones).

The product of its digits is 246960, while the sum is 45.

The square root of 2787795 is about 1669.6691288995. The cubic root of 2787795 is about 140.7408852167.

It can be divided in two parts, 278779 and 5, that added together give a square (278784 = 528²).

The spelling of 2787795 in words is "two million, seven hundred eighty-seven thousand, seven hundred ninety-five".