2311297 has 4 divisors (see below), whose sum is σ = 2321620. Its totient is φ = 2300976.

The previous prime is 2311289. The next prime is 2311321. The reversal of 2311297 is 7921132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1739761 + 571536 = 1319^2 + 756^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311297 - 2³ = 2311289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2311237) 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, 4818 + ... + 5275.

It is an arithmetic number, because the mean of its divisors is an integer number (580405).

2^2311297 is an apocalyptic number.

It is an amenable number.

2311297 is a deficient number, since it is larger than the sum of its proper divisors (10323).

2311297 is a wasteful number, since it uses less digits than its factorization.

2311297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10322.

The product of its digits is 756, while the sum is 25.

The square root of 2311297 is about 1520.2950371556. The cubic root of 2311297 is about 132.2163768284.

The spelling of 2311297 in words is "two million, three hundred eleven thousand, two hundred ninety-seven".