2285771 has 4 divisors (see below), whose sum is σ = 2289000. Its totient is φ = 2282544.

The previous prime is 2285747. The next prime is 2285779. The reversal of 2285771 is 1775822.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1775822 = 2 ⋅887911.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2285771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2285779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41 + ... + 2138.

It is an arithmetic number, because the mean of its divisors is an integer number (572250).

2^2285771 is an apocalyptic number.

2285771 is a deficient number, since it is larger than the sum of its proper divisors (3229).

2285771 is a wasteful number, since it uses less digits than its factorization.

2285771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3228.

The product of its digits is 7840, while the sum is 32.

The square root of 2285771 is about 1511.8766484075. The cubic root of 2285771 is about 131.7278406827.

The spelling of 2285771 in words is "two million, two hundred eighty-five thousand, seven hundred seventy-one".