549849 has 4 divisors (see below), whose sum is σ = 733136. Its totient is φ = 366564.

The previous prime is 549839. The next prime is 549863. The reversal of 549849 is 948945.

549849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 549849 - 2⁴ = 549833 is a prime.

It is a D-number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 549849.

It is not an unprimeable number, because it can be changed into a prime (549839) 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, 91639 + ... + 91644.

It is an arithmetic number, because the mean of its divisors is an integer number (183284).

2⁵⁴⁹⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

549849 is a deficient number, since it is larger than the sum of its proper divisors (183287).

549849 is a wasteful number, since it uses less digits than its factorization.

549849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183286.

The product of its digits is 51840, while the sum is 39.

The square root of 549849 is about 741.5180375419. The cubic root of 549849 is about 81.9246283428.

The spelling of 549849 in words is "five hundred forty-nine thousand, eight hundred forty-nine".