2421343 has 2 divisors, whose sum is σ = 2421344. Its totient is φ = 2421342.

The previous prime is 2421329. The next prime is 2421347. The reversal of 2421343 is 3431242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2421343 - 2⁵ = 2421311 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2421343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2421347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210671 + 1210672.

It is an arithmetic number, because the mean of its divisors is an integer number (1210672).

2^2421343 is an apocalyptic number.

2421343 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421343 is an equidigital number, since it uses as much as digits as its factorization.

2421343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 19.

The square root of 2421343 is about 1556.0665152878. The cubic root of 2421343 is about 134.2823000813.

Adding to 2421343 its reverse (3431242), we get a palindrome (5852585).

The spelling of 2421343 in words is "two million, four hundred twenty-one thousand, three hundred forty-three".