5438549 has 2 divisors, whose sum is σ = 5438550. Its totient is φ = 5438548.

The previous prime is 5438501. The next prime is 5438551. The reversal of 5438549 is 9458345.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2856100 + 2582449 = 1690^2 + 1607^2 .

It is a cyclic number.

It is not a de Polignac number, because 5438549 - 2¹² = 5434453 is a prime.

Together with 5438551, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5438569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2719274 + 2719275.

It is an arithmetic number, because the mean of its divisors is an integer number (2719275).

Almost surely, 2^5438549 is an apocalyptic number.

It is an amenable number.

5438549 is a deficient number, since it is larger than the sum of its proper divisors (1).

5438549 is an equidigital number, since it uses as much as digits as its factorization.

5438549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 38.

The square root of 5438549 is about 2332.0696816347. The cubic root of 5438549 is about 175.8575487315.

The spelling of 5438549 in words is "five million, four hundred thirty-eight thousand, five hundred forty-nine".