1423403 has 2 divisors, whose sum is σ = 1423404. Its totient is φ = 1423402.

The previous prime is 1423399. The next prime is 1423417. The reversal of 1423403 is 3043241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1423403 - 2² = 1423399 is a prime.

It is a super-2 number, since 2×1423403² = 4052152200818, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1423453) 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, 711701 + 711702.

It is an arithmetic number, because the mean of its divisors is an integer number (711702).

2^1423403 is an apocalyptic number.

1423403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423403 is an equidigital number, since it uses as much as digits as its factorization.

1423403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1423403 is about 1193.0645414226. The cubic root of 1423403 is about 112.4888021776.

Adding to 1423403 its reverse (3043241), we get a palindrome (4466644).

The spelling of 1423403 in words is "one million, four hundred twenty-three thousand, four hundred three".