1523823 has 16 divisors (see below), whose sum is σ = 2342400. Its totient is φ = 863136.

The previous prime is 1523813. The next prime is 1523849. The reversal of 1523823 is 3283251.

It is not a de Polignac number, because 1523823 - 2⁴ = 1523807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1523793 and 1523802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1523813) 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 in 15 ways as a sum of consecutive naturals, for example, 2886 + ... + 3372.

It is an arithmetic number, because the mean of its divisors is an integer number (146400).

2^1523823 is an apocalyptic number.

1523823 is a deficient number, since it is larger than the sum of its proper divisors (818577).

1523823 is a wasteful number, since it uses less digits than its factorization.

1523823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646.

The product of its digits is 1440, while the sum is 24.

The square root of 1523823 is about 1234.4322581657. The cubic root of 1523823 is about 115.0742557603.

It can be divided in two parts, 1523 and 823, that added together give a triangular number (2346 = T₆₈).

The spelling of 1523823 in words is "one million, five hundred twenty-three thousand, eight hundred twenty-three".