3443894393 has 4 divisors (see below), whose sum is σ = 3448152180. Its totient is φ = 3439636608.

The previous prime is 3443894383. The next prime is 3443894401. The reversal of 3443894393 is 3934983443.

It is a happy number.

3443894393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2943388009 + 500506384 = 54253^2 + 22372^2 .

It is a cyclic number.

It is not a de Polignac number, because 3443894393 - 2⁶ = 3443894329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3443894353) 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, 2127680 + ... + 2129297.

It is an arithmetic number, because the mean of its divisors is an integer number (862038045).

Almost surely, 2^3443894393 is an apocalyptic number.

It is an amenable number.

3443894393 is a deficient number, since it is larger than the sum of its proper divisors (4257787).

3443894393 is an equidigital number, since it uses as much as digits as its factorization.

3443894393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4257786.

The product of its digits is 3359232, while the sum is 50.

The square root of 3443894393 is about 58684.7032283542. The cubic root of 3443894393 is about 1510.1379043094.

The spelling of 3443894393 in words is "three billion, four hundred forty-three million, eight hundred ninety-four thousand, three hundred ninety-three".