1423843 has 2 divisors, whose sum is σ = 1423844. Its totient is φ = 1423842.

The previous prime is 1423819. The next prime is 1423853. The reversal of 1423843 is 3483241.

It is a strong prime.

It is an emirp because it is prime and its reverse (3483241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1423843 - 2¹³ = 1415651 is a prime.

It is a d-powerful number, because it can be written as 1 + 4⁸ + 2¹⁵ + 3¹² + 8³ + 4⁹ + 3¹² .

1423843 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1423853) 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, 711921 + 711922.

It is an arithmetic number, because the mean of its divisors is an integer number (711922).

2^1423843 is an apocalyptic number.

1423843 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423843 is an equidigital number, since it uses as much as digits as its factorization.

1423843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 25.

The square root of 1423843 is about 1193.2489262514. The cubic root of 1423843 is about 112.5003917682.

The spelling of 1423843 in words is "one million, four hundred twenty-three thousand, eight hundred forty-three".