2288971 has 4 divisors (see below), whose sum is σ = 2293744. Its totient is φ = 2284200.

The previous prime is 2288953. The next prime is 2289013. The reversal of 2288971 is 1798822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2288971 - 2⁵ = 2288939 is a prime.

It is a Duffinian number.

2288971 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2288971.

It is not an unprimeable number, because it can be changed into a prime (2288471) 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, 1575 + ... + 2656.

It is an arithmetic number, because the mean of its divisors is an integer number (573436).

2^2288971 is an apocalyptic number.

2288971 is a deficient number, since it is larger than the sum of its proper divisors (4773).

2288971 is an equidigital number, since it uses as much as digits as its factorization.

2288971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4772.

The product of its digits is 16128, while the sum is 37.

The square root of 2288971 is about 1512.9345656703. The cubic root of 2288971 is about 131.7892834860.

The spelling of 2288971 in words is "two million, two hundred eighty-eight thousand, nine hundred seventy-one".