2316289 has 4 divisors (see below), whose sum is σ = 2391040. Its totient is φ = 2241540.

The previous prime is 2316287. The next prime is 2316299. The reversal of 2316289 is 9826132.

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 2316289 - 2¹ = 2316287 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 74719 = 2316289 / (2 + 3 + 1 + 6 + 2 + 8 + 9).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2316289.

It is not an unprimeable number, because it can be changed into a prime (2316287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37329 + ... + 37390.

It is an arithmetic number, because the mean of its divisors is an integer number (597760).

It is a Proth number, since it is equal to 1131 ⋅ 2¹¹ + 1 and 1131 < 2¹¹.

2^2316289 is an apocalyptic number.

It is an amenable number.

2316289 is a deficient number, since it is larger than the sum of its proper divisors (74751).

2316289 is an equidigital number, since it uses as much as digits as its factorization.

2316289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74750.

The product of its digits is 5184, while the sum is 31.

The square root of 2316289 is about 1521.9359382050. The cubic root of 2316289 is about 132.3114965156.

The spelling of 2316289 in words is "two million, three hundred sixteen thousand, two hundred eighty-nine".