1424623 has 4 divisors (see below), whose sum is σ = 1440720. Its totient is φ = 1408528.

The previous prime is 1424603. The next prime is 1424659. The reversal of 1424623 is 3264241.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1424623 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1424594 and 1424603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1424603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7915 + ... + 8092.

It is an arithmetic number, because the mean of its divisors is an integer number (360180).

2^1424623 is an apocalyptic number.

1424623 is a deficient number, since it is larger than the sum of its proper divisors (16097).

1424623 is an equidigital number, since it uses as much as digits as its factorization.

1424623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16096.

The product of its digits is 1152, while the sum is 22.

The square root of 1424623 is about 1193.5757202624. The cubic root of 1424623 is about 112.5209310849.

Adding to 1424623 its reverse (3264241), we get a palindrome (4688864).

The spelling of 1424623 in words is "one million, four hundred twenty-four thousand, six hundred twenty-three".