2289091 has 8 divisors (see below), whose sum is σ = 2626400. Its totient is φ = 1954368.

The previous prime is 2289083. The next prime is 2289127. The reversal of 2289091 is 1909822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2289091 - 2³ = 2289083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2289031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1975 + ... + 2911.

It is an arithmetic number, because the mean of its divisors is an integer number (328300).

2^2289091 is an apocalyptic number.

2289091 is a deficient number, since it is larger than the sum of its proper divisors (337309).

2289091 is an equidigital number, since it uses as much as digits as its factorization.

2289091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 2289091 is about 1512.9742231776. The cubic root of 2289091 is about 131.7915864769.

The spelling of 2289091 in words is "two million, two hundred eighty-nine thousand, ninety-one".