2788123 has 8 divisors (see below), whose sum is σ = 3076416. Its totient is φ = 2510400.

The previous prime is 2788091. The next prime is 2788133. The reversal of 2788123 is 3218872.

2788123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2788123 - 2⁵ = 2788091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2788133) 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 7 ways as a sum of consecutive naturals, for example, 2083 + ... + 3148.

It is an arithmetic number, because the mean of its divisors is an integer number (384552).

2^2788123 is an apocalyptic number.

2788123 is a deficient number, since it is larger than the sum of its proper divisors (288293).

2788123 is a wasteful number, since it uses less digits than its factorization.

2788123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5285.

The product of its digits is 5376, while the sum is 31.

The square root of 2788123 is about 1669.7673490639. The cubic root of 2788123 is about 140.7464046565.

The spelling of 2788123 in words is "two million, seven hundred eighty-eight thousand, one hundred twenty-three".