2272287 has 4 divisors (see below), whose sum is σ = 3029720. Its totient is φ = 1514856.

The previous prime is 2272273. The next prime is 2272297. The reversal of 2272287 is 7822722.

2272287 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 is not a de Polignac number, because 2272287 - 2⁶ = 2272223 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2272217) 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, 378712 + ... + 378717.

It is an arithmetic number, because the mean of its divisors is an integer number (757430).

2^2272287 is an apocalyptic number.

2272287 is a deficient number, since it is larger than the sum of its proper divisors (757433).

2272287 is an equidigital number, since it uses as much as digits as its factorization.

2272287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757432.

The product of its digits is 6272, while the sum is 30.

The square root of 2272287 is about 1507.4106938721. The cubic root of 2272287 is about 131.4683042733.

The spelling of 2272287 in words is "two million, two hundred seventy-two thousand, two hundred eighty-seven".