1623023 has 2 divisors, whose sum is σ = 1623024. Its totient is φ = 1623022.

The previous prime is 1622987. The next prime is 1623029. The reversal of 1623023 is 3203261.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1623023 - 2¹⁴ = 1606639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1622992 and 1623010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1623029) 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, 811511 + 811512.

It is an arithmetic number, because the mean of its divisors is an integer number (811512).

2^1623023 is an apocalyptic number.

1623023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1623023 is an equidigital number, since it uses as much as digits as its factorization.

1623023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1623023 is about 1273.9791992022. The cubic root of 1623023 is about 117.5190372052.

Adding to 1623023 its reverse (3203261), we get a palindrome (4826284).

The spelling of 1623023 in words is "one million, six hundred twenty-three thousand, twenty-three".