2331289 has 4 divisors (see below), whose sum is σ = 2346880. Its totient is φ = 2315700.

The previous prime is 2331283. The next prime is 2331299. The reversal of 2331289 is 9821332.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2331289 - 2¹¹ = 2329241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2331283) 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, 7569 + ... + 7870.

It is an arithmetic number, because the mean of its divisors is an integer number (586720).

2^2331289 is an apocalyptic number.

It is an amenable number.

2331289 is a deficient number, since it is larger than the sum of its proper divisors (15591).

2331289 is a wasteful number, since it uses less digits than its factorization.

2331289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15590.

The product of its digits is 2592, while the sum is 28.

The square root of 2331289 is about 1526.8559198562. The cubic root of 2331289 is about 132.5964931389.

The spelling of 2331289 in words is "two million, three hundred thirty-one thousand, two hundred eighty-nine".