3557443 has 4 divisors (see below), whose sum is σ = 3561408. Its totient is φ = 3553480.

The previous prime is 3557441. The next prime is 3557473. The reversal of 3557443 is 3447553.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3557443 - 2¹ = 3557441 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 3⁸ + 5⁵ + 5⁹ + 7² + 4 + 4⁴ + 3¹³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3557441) 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, 78 + ... + 2668.

It is an arithmetic number, because the mean of its divisors is an integer number (890352).

Almost surely, 2^3557443 is an apocalyptic number.

3557443 is a deficient number, since it is larger than the sum of its proper divisors (3965).

3557443 is a wasteful number, since it uses less digits than its factorization.

3557443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964.

The product of its digits is 25200, while the sum is 31.

The square root of 3557443 is about 1886.1185010492. The cubic root of 3557443 is about 152.6555682030.

It can be divided in two parts, 3557 and 443, that multiplied together give a palindrome (1575751).

The spelling of 3557443 in words is "three million, five hundred fifty-seven thousand, four hundred forty-three".