5443813 has 4 divisors (see below), whose sum is σ = 5463468. Its totient is φ = 5424160.

The previous prime is 5443771. The next prime is 5443831. The reversal of 5443813 is 3183445.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2614689 + 2829124 = 1617^2 + 1682^2 .

It is a cyclic number.

It is not a de Polignac number, because 5443813 - 2⁹ = 5443301 is a prime.

It is a Duffinian number.

5443813 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5443873) 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, 9406 + ... + 9967.

It is an arithmetic number, because the mean of its divisors is an integer number (1365867).

Almost surely, 2^5443813 is an apocalyptic number.

It is an amenable number.

5443813 is a deficient number, since it is larger than the sum of its proper divisors (19655).

5443813 is a wasteful number, since it uses less digits than its factorization.

5443813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19654.

The product of its digits is 5760, while the sum is 28.

The square root of 5443813 is about 2333.1980198860. The cubic root of 5443813 is about 175.9142682492.

The spelling of 5443813 in words is "five million, four hundred forty-three thousand, eight hundred thirteen".