1423399 has 2 divisors, whose sum is σ = 1423400. Its totient is φ = 1423398.

The previous prime is 1423391. The next prime is 1423403. The reversal of 1423399 is 9933241.

It is a strong prime.

It is an emirp because it is prime and its reverse (9933241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1423399 - 2³ = 1423391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1423399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1423391) 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 as a sum of consecutive naturals, namely, 711699 + 711700.

It is an arithmetic number, because the mean of its divisors is an integer number (711700).

2^1423399 is an apocalyptic number.

1423399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423399 is an equidigital number, since it uses as much as digits as its factorization.

1423399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 31.

The square root of 1423399 is about 1193.0628650662. The cubic root of 1423399 is about 112.4886968068.

The spelling of 1423399 in words is "one million, four hundred twenty-three thousand, three hundred ninety-nine".