4443613 has 4 divisors (see below), whose sum is σ = 4705020. Its totient is φ = 4182208.

The previous prime is 4443601. The next prime is 4443619. The reversal of 4443613 is 3163444.

It is a happy number.

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 1214404 + 3229209 = 1102^2 + 1797^2 .

It is a cyclic number.

It is not a de Polignac number, because 4443613 - 2⁵ = 4443581 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 (4443619) 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, 130678 + ... + 130711.

It is an arithmetic number, because the mean of its divisors is an integer number (1176255).

Almost surely, 2^4443613 is an apocalyptic number.

It is an amenable number.

4443613 is a deficient number, since it is larger than the sum of its proper divisors (261407).

4443613 is a wasteful number, since it uses less digits than its factorization.

4443613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261406.

The product of its digits is 3456, while the sum is 25.

The square root of 4443613 is about 2107.9879031911. The cubic root of 4443613 is about 164.4038850577.

The spelling of 4443613 in words is "four million, four hundred forty-three thousand, six hundred thirteen".