1823923 has 4 divisors (see below), whose sum is σ = 1903248. Its totient is φ = 1744600.

The previous prime is 1823911. The next prime is 1823953. The reversal of 1823923 is 3293281.

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

It is a cyclic number.

It is not a de Polignac number, because 1823923 - 2¹³ = 1815731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1823891 and 1823900.

It is not an unprimeable number, because it can be changed into a prime (1823903) 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 3 ways as a sum of consecutive naturals, for example, 39628 + ... + 39673.

It is an arithmetic number, because the mean of its divisors is an integer number (475812).

2^1823923 is an apocalyptic number.

1823923 is a deficient number, since it is larger than the sum of its proper divisors (79325).

1823923 is an equidigital number, since it uses as much as digits as its factorization.

1823923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79324.

The product of its digits is 2592, while the sum is 28.

The square root of 1823923 is about 1350.5269342001. The cubic root of 1823923 is about 122.1805755566.

The spelling of 1823923 in words is "one million, eight hundred twenty-three thousand, nine hundred twenty-three".