1426623 has 16 divisors (see below), whose sum is σ = 2198016. Its totient is φ = 813440.

The previous prime is 1426619. The next prime is 1426627. The reversal of 1426623 is 3266241.

It is an interprime number because it is at equal distance from previous prime (1426619) and next prime (1426627).

It is a cyclic number.

It is not a de Polignac number, because 1426623 - 2² = 1426619 is a prime.

1426623 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1426593 and 1426602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426627) 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 in 15 ways as a sum of consecutive naturals, for example, 711 + ... + 1832.

It is an arithmetic number, because the mean of its divisors is an integer number (137376).

2^1426623 is an apocalyptic number.

1426623 is a deficient number, since it is larger than the sum of its proper divisors (771393).

1426623 is a wasteful number, since it uses less digits than its factorization.

1426623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574.

The product of its digits is 1728, while the sum is 24.

The square root of 1426623 is about 1194.4132450706. The cubic root of 1426623 is about 112.5735617653.

It can be divided in two parts, 1 and 426623, that added together give a palindrome (426624).

The spelling of 1426623 in words is "one million, four hundred twenty-six thousand, six hundred twenty-three".