2887229 has 4 divisors (see below), whose sum is σ = 3057084. Its totient is φ = 2717376.

The previous prime is 2887217. The next prime is 2887237. The reversal of 2887229 is 9227882.

2887229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1452025 + 1435204 = 1205^2 + 1198^2 .

It is a cyclic number.

It is not a de Polignac number, because 2887229 - 2⁸ = 2886973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2887192 and 2887201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2887279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84902 + ... + 84935.

It is an arithmetic number, because the mean of its divisors is an integer number (764271).

2^2887229 is an apocalyptic number.

It is an amenable number.

2887229 is a deficient number, since it is larger than the sum of its proper divisors (169855).

2887229 is a wasteful number, since it uses less digits than its factorization.

2887229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169854.

The product of its digits is 32256, while the sum is 38.

The square root of 2887229 is about 1699.1848045460. The cubic root of 2887229 is about 142.3946733742.

The spelling of 2887229 in words is "two million, eight hundred eighty-seven thousand, two hundred twenty-nine".