549828439 has 2 divisors, whose sum is σ = 549828440. Its totient is φ = 549828438.

The previous prime is 549828421. The next prime is 549828449. The reversal of 549828439 is 934828945.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 549828439 - 2⁷ = 549828311 is a prime.

It is a super-2 number, since 2×549828439² = 604622624666353442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549828449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274914219 + 274914220.

It is an arithmetic number, because the mean of its divisors is an integer number (274914220).

Almost surely, 2^549828439 is an apocalyptic number.

549828439 is a deficient number, since it is larger than the sum of its proper divisors (1).

549828439 is an equidigital number, since it uses as much as digits as its factorization.

549828439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2488320, while the sum is 52.

The square root of 549828439 is about 23448.4208210276. The cubic root of 549828439 is about 819.2360716950.

The spelling of 549828439 in words is "five hundred forty-nine million, eight hundred twenty-eight thousand, four hundred thirty-nine".