2288591 has 6 divisors (see below), whose sum is σ = 2431440. Its totient is φ = 2153696.

The previous prime is 2288581. The next prime is 2288597. The reversal of 2288591 is 1958822.

It is not a de Polignac number, because 2288591 - 2⁶ = 2288527 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 (2288597) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3671 + ... + 4248.

It is an arithmetic number, because the mean of its divisors is an integer number (405240).

2^2288591 is an apocalyptic number.

2288591 is a deficient number, since it is larger than the sum of its proper divisors (142849).

2288591 is an equidigital number, since it uses as much as digits as its factorization.

2288591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7953 (or 7936 counting only the distinct ones).

The product of its digits is 11520, while the sum is 35.

The square root of 2288591 is about 1512.8089767053. The cubic root of 2288591 is about 131.7819901507.

The spelling of 2288591 in words is "two million, two hundred eighty-eight thousand, five hundred ninety-one".