3549428219 has 2 divisors, whose sum is σ = 3549428220. Its totient is φ = 3549428218.

The previous prime is 3549428189. The next prime is 3549428231. The reversal of 3549428219 is 9128249453.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3549428219 - 2¹⁶ = 3549362683 is a prime.

It is a super-2 number, since 2×3549428219² = 25196881363667023922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3549448219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1774714109 + 1774714110.

It is an arithmetic number, because the mean of its divisors is an integer number (1774714110).

Almost surely, 2^3549428219 is an apocalyptic number.

3549428219 is a deficient number, since it is larger than the sum of its proper divisors (1).

3549428219 is an equidigital number, since it uses as much as digits as its factorization.

3549428219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 47.

The square root of 3549428219 is about 59577.0779662783. The cubic root of 3549428219 is about 1525.4083964351.

The spelling of 3549428219 in words is "three billion, five hundred forty-nine million, four hundred twenty-eight thousand, two hundred nineteen".