2286661 has 4 divisors (see below), whose sum is σ = 2462572. Its totient is φ = 2110752.

The previous prime is 2286659. The next prime is 2286671. The reversal of 2286661 is 1666822.

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 256036 + 2030625 = 506^2 + 1425^2 .

It is a cyclic number.

It is not a de Polignac number, because 2286661 - 2¹ = 2286659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2286601) 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, 87936 + ... + 87961.

It is an arithmetic number, because the mean of its divisors is an integer number (615643).

2^2286661 is an apocalyptic number.

It is an amenable number.

2286661 is a deficient number, since it is larger than the sum of its proper divisors (175911).

2286661 is a wasteful number, since it uses less digits than its factorization.

2286661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175910.

The product of its digits is 6912, while the sum is 31.

The square root of 2286661 is about 1512.1709559438. The cubic root of 2286661 is about 131.7449352160.

It can be divided in two parts, 228 and 6661, that added together give a square (6889 = 83²).

The spelling of 2286661 in words is "two million, two hundred eighty-six thousand, six hundred sixty-one".