1384823873 has 4 divisors (see below), whose sum is σ = 1457709360. Its totient is φ = 1311938388.

The previous prime is 1384823851. The next prime is 1384823879. The reversal of 1384823873 is 3783284831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3783284831 = 227 ⋅16666453.

It is a cyclic number.

It is not a de Polignac number, because 1384823873 - 2¹⁸ = 1384561729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1384823879) 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, 36442715 + ... + 36442752.

It is an arithmetic number, because the mean of its divisors is an integer number (364427340).

Almost surely, 2^1384823873 is an apocalyptic number.

It is an amenable number.

1384823873 is a deficient number, since it is larger than the sum of its proper divisors (72885487).

1384823873 is an equidigital number, since it uses as much as digits as its factorization.

1384823873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72885486.

The product of its digits is 774144, while the sum is 47.

The square root of 1384823873 is about 37213.2217498029. The cubic root of 1384823873 is about 1114.6320175618.

The spelling of 1384823873 in words is "one billion, three hundred eighty-four million, eight hundred twenty-three thousand, eight hundred seventy-three".