1384505673 has 4 divisors (see below), whose sum is σ = 1846007568. Its totient is φ = 923003780.

The previous prime is 1384505657. The next prime is 1384505713. The reversal of 1384505673 is 3765054831.

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: 3765054831 = 3 ⋅1255018277.

It is a cyclic number.

It is not a de Polignac number, because 1384505673 - 2⁴ = 1384505657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1384515673) 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, 230750943 + ... + 230750948.

It is an arithmetic number, because the mean of its divisors is an integer number (461501892).

Almost surely, 2^1384505673 is an apocalyptic number.

It is an amenable number.

1384505673 is a deficient number, since it is larger than the sum of its proper divisors (461501895).

1384505673 is an equidigital number, since it uses as much as digits as its factorization.

1384505673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461501894.

The product of its (nonzero) digits is 302400, while the sum is 42.

The square root of 1384505673 is about 37208.9461420234. The cubic root of 1384505673 is about 1114.5466389362.

The spelling of 1384505673 in words is "one billion, three hundred eighty-four million, five hundred five thousand, six hundred seventy-three".