1383943 has 4 divisors (see below), whose sum is σ = 1509768. Its totient is φ = 1258120.

The previous prime is 1383937. The next prime is 1383947. The reversal of 1383943 is 3493831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3493831 = 11 ⋅317621.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1383943 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 (1383947) 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, 62896 + ... + 62917.

It is an arithmetic number, because the mean of its divisors is an integer number (377442).

2^1383943 is an apocalyptic number.

1383943 is a deficient number, since it is larger than the sum of its proper divisors (125825).

1383943 is a wasteful number, since it uses less digits than its factorization.

1383943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125824.

The product of its digits is 7776, while the sum is 31.

The square root of 1383943 is about 1176.4110676120. The cubic root of 1383943 is about 111.4395631904.

The spelling of 1383943 in words is "one million, three hundred eighty-three thousand, nine hundred forty-three".