2289657 has 8 divisors (see below), whose sum is σ = 3091840. Its totient is φ = 1506960.

The previous prime is 2289649. The next prime is 2289659. The reversal of 2289657 is 7569822.

It is a happy number.

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

It is not a de Polignac number, because 2289657 - 2³ = 2289649 is a prime.

It is a d-powerful number, because it can be written as 2² + 2¹⁶ + 8⁶ + 9³ + 6⁵ + 5⁹ + 7³ .

It is a Duffinian number.

2289657 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2289659) 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, 4594 + ... + 5067.

It is an arithmetic number, because the mean of its divisors is an integer number (386480).

2^2289657 is an apocalyptic number.

It is an amenable number.

2289657 is a deficient number, since it is larger than the sum of its proper divisors (802183).

2289657 is an equidigital number, since it uses as much as digits as its factorization.

2289657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9743.

The product of its digits is 60480, while the sum is 39.

The square root of 2289657 is about 1513.1612604082. The cubic root of 2289657 is about 131.8024478320.

The spelling of 2289657 in words is "two million, two hundred eighty-nine thousand, six hundred fifty-seven".