2303643 has 4 divisors (see below), whose sum is σ = 3071528. Its totient is φ = 1535760.

The previous prime is 2303629. The next prime is 2303663. The reversal of 2303643 is 3463032.

2303643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2303643 - 2⁴ = 2303627 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 3¹¹ + 0 + 3¹² + 6³ + 4 + 3¹³ .

It is a D-number.

It is a Duffinian number.

2303643 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2303663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383938 + ... + 383943.

It is an arithmetic number, because the mean of its divisors is an integer number (767882).

2^2303643 is an apocalyptic number.

2303643 is a deficient number, since it is larger than the sum of its proper divisors (767885).

2303643 is an equidigital number, since it uses as much as digits as its factorization.

2303643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767884.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 2303643 is about 1517.7756751246. The cubic root of 2303643 is about 132.0702679134.

Adding to 2303643 its reverse (3463032), we get a palindrome (5766675).

The spelling of 2303643 in words is "two million, three hundred three thousand, six hundred forty-three".