2643323 has 4 divisors (see below), whose sum is σ = 2649888. Its totient is φ = 2636760.

The previous prime is 2643307. The next prime is 2643331. The reversal of 2643323 is 3233462.

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

It is a cyclic number.

It is not a de Polignac number, because 2643323 - 2⁴ = 2643307 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 6 + 4 + 3 + 3⁷ + 2²¹ + 3⁹ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2643343) 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, 2636 + ... + 3497.

It is an arithmetic number, because the mean of its divisors is an integer number (662472).

2^2643323 is an apocalyptic number.

2643323 is a deficient number, since it is larger than the sum of its proper divisors (6565).

2643323 is an equidigital number, since it uses as much as digits as its factorization.

2643323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6564.

The product of its digits is 2592, while the sum is 23.

The square root of 2643323 is about 1625.8299419066. The cubic root of 2643323 is about 138.2664285103.

Adding to 2643323 its reverse (3233462), we get a palindrome (5876785).

The spelling of 2643323 in words is "two million, six hundred forty-three thousand, three hundred twenty-three".