1383791 has 4 divisors (see below), whose sum is σ = 1417584. Its totient is φ = 1350000.

The previous prime is 1383769. The next prime is 1383797. The reversal of 1383791 is 1973831.

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 1383791 - 2¹⁰ = 1382767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383797) 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, 16835 + ... + 16916.

It is an arithmetic number, because the mean of its divisors is an integer number (354396).

2^1383791 is an apocalyptic number.

1383791 is a deficient number, since it is larger than the sum of its proper divisors (33793).

1383791 is an equidigital number, since it uses as much as digits as its factorization.

1383791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33792.

The product of its digits is 4536, while the sum is 32.

The square root of 1383791 is about 1176.3464625696. The cubic root of 1383791 is about 111.4354831973.

The spelling of 1383791 in words is "one million, three hundred eighty-three thousand, seven hundred ninety-one".