1383823 has 4 divisors (see below), whose sum is σ = 1581520. Its totient is φ = 1186128.

The previous prime is 1383803. The next prime is 1383829. The reversal of 1383823 is 3283831.

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 1383823 - 2¹⁷ = 1252751 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1383791 and 1383800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383829) 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, 98838 + ... + 98851.

It is an arithmetic number, because the mean of its divisors is an integer number (395380).

2^1383823 is an apocalyptic number.

1383823 is a deficient number, since it is larger than the sum of its proper divisors (197697).

1383823 is an equidigital number, since it uses as much as digits as its factorization.

1383823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197696.

The product of its digits is 3456, while the sum is 28.

The square root of 1383823 is about 1176.3600639260. The cubic root of 1383823 is about 111.4363421681.

It can be divided in two parts, 13838 and 23, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 1383823 in words is "one million, three hundred eighty-three thousand, eight hundred twenty-three".