2788355 has 4 divisors (see below), whose sum is σ = 3346032. Its totient is φ = 2230680.

The previous prime is 2788349. The next prime is 2788367. The reversal of 2788355 is 5538872.

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

It is not a de Polignac number, because 2788355 - 2¹⁰ = 2787331 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278831 + ... + 278840.

It is an arithmetic number, because the mean of its divisors is an integer number (836508).

2^2788355 is an apocalyptic number.

2788355 is a deficient number, since it is larger than the sum of its proper divisors (557677).

2788355 is an equidigital number, since it uses as much as digits as its factorization.

2788355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557676.

The product of its digits is 67200, while the sum is 38.

The square root of 2788355 is about 1669.8368183748. The cubic root of 2788355 is about 140.7503083891.

The spelling of 2788355 in words is "two million, seven hundred eighty-eight thousand, three hundred fifty-five".