2285761 has 4 divisors (see below), whose sum is σ = 2289492. Its totient is φ = 2282032.

The previous prime is 2285747. The next prime is 2285779. The reversal of 2285761 is 1675822.

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 269361 + 2016400 = 519^2 + 1420^2 .

It is a cyclic number.

It is not a de Polignac number, because 2285761 - 2⁹ = 2285249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2285711) 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, 706 + ... + 2251.

It is an arithmetic number, because the mean of its divisors is an integer number (572373).

2^2285761 is an apocalyptic number.

It is an amenable number.

2285761 is a deficient number, since it is larger than the sum of its proper divisors (3731).

2285761 is an equidigital number, since it uses as much as digits as its factorization.

2285761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3730.

The product of its digits is 6720, while the sum is 31.

The square root of 2285761 is about 1511.8733412558. The cubic root of 2285761 is about 131.7276485840.

The spelling of 2285761 in words is "two million, two hundred eighty-five thousand, seven hundred sixty-one".