5391943 has 4 divisors (see below), whose sum is σ = 5399080. Its totient is φ = 5384808.

The previous prime is 5391937. The next prime is 5391961. The reversal of 5391943 is 3491935.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3491935 = 5 ⋅698387.

It is a cyclic number.

It is not a de Polignac number, because 5391943 - 2²¹ = 3294791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5391899 and 5391908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5391983) 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, 2280 + ... + 3997.

It is an arithmetic number, because the mean of its divisors is an integer number (1349770).

Almost surely, 2^5391943 is an apocalyptic number.

5391943 is a deficient number, since it is larger than the sum of its proper divisors (7137).

5391943 is an equidigital number, since it uses as much as digits as its factorization.

5391943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7136.

The product of its digits is 14580, while the sum is 34.

The square root of 5391943 is about 2322.0557702174. The cubic root of 5391943 is about 175.3537660057.

The spelling of 5391943 in words is "five million, three hundred ninety-one thousand, nine hundred forty-three".