3553243 has 2 divisors, whose sum is σ = 3553244. Its totient is φ = 3553242.

The previous prime is 3553241. The next prime is 3553267. The reversal of 3553243 is 3423553.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3553243 - 2¹ = 3553241 is a prime.

Together with 3553241, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3553241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1776621 + 1776622.

It is an arithmetic number, because the mean of its divisors is an integer number (1776622).

Almost surely, 2^3553243 is an apocalyptic number.

3553243 is a deficient number, since it is larger than the sum of its proper divisors (1).

3553243 is an equidigital number, since it uses as much as digits as its factorization.

3553243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 25.

The square root of 3553243 is about 1885.0047745298. The cubic root of 3553243 is about 152.5954683061.

Adding to 3553243 its reverse (3423553), we get a palindrome (6976796).

The spelling of 3553243 in words is "three million, five hundred fifty-three thousand, two hundred forty-three".