2288691 has 6 divisors (see below), whose sum is σ = 3305900. Its totient is φ = 1525788.

The previous prime is 2288687. The next prime is 2288711. The reversal of 2288691 is 1968822.

2288691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2288691 - 2² = 2288687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2288641) 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 5 ways as a sum of consecutive naturals, for example, 127141 + ... + 127158.

2^2288691 is an apocalyptic number.

2288691 is a deficient number, since it is larger than the sum of its proper divisors (1017209).

2288691 is a wasteful number, since it uses less digits than its factorization.

2288691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254305 (or 254302 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 2288691 is about 1512.8420274437. The cubic root of 2288691 is about 131.7839095277.

The spelling of 2288691 in words is "two million, two hundred eighty-eight thousand, six hundred ninety-one".