2288785 has 4 divisors (see below), whose sum is σ = 2746548. Its totient is φ = 1831024.

The previous prime is 2288773. The next prime is 2288801. The reversal of 2288785 is 5878822.

2288785 is nontrivially palindromic in base 6.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1661521 + 627264 = 1289^2 + 792^2 .

It is a cyclic number.

It is not a de Polignac number, because 2288785 - 2¹⁵ = 2256017 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 228874 + ... + 228883.

It is an arithmetic number, because the mean of its divisors is an integer number (686637).

2^2288785 is an apocalyptic number.

It is an amenable number.

2288785 is a deficient number, since it is larger than the sum of its proper divisors (457763).

2288785 is an equidigital number, since it uses as much as digits as its factorization.

2288785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457762.

The product of its digits is 71680, while the sum is 40.

The square root of 2288785 is about 1512.8730944795. The cubic root of 2288785 is about 131.7857136912.

The spelling of 2288785 in words is "two million, two hundred eighty-eight thousand, seven hundred eighty-five".