549829 has 10 divisors (see below), whose sum is σ = 644230. Its totient is φ = 469224.

The previous prime is 549817. The next prime is 549833. The reversal of 549829 is 928945.

549829 is nontrivially palindromic in base 9.

It can be written as a sum of positive squares in only one way, i.e., 540225 + 9604 = 735^2 + 98^2 .

It is not a de Polignac number, because 549829 - 2⁷ = 549701 is a prime.

It is a Duffinian number.

It is a congruent number.

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 9 ways as a sum of consecutive naturals, for example, 2287 + ... + 2515.

It is an arithmetic number, because the mean of its divisors is an integer number (64423).

2⁵⁴⁹⁸²⁹ is an apocalyptic number.

It is an amenable number.

549829 is a deficient number, since it is larger than the sum of its proper divisors (94401).

549829 is an frugal number, since it uses more digits than its factorization.

549829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 236 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

The square root of 549829 is about 741.5045515707. The cubic root of 549829 is about 81.9236350322.

It can be divided in two parts, 549 and 829, that added together give a triangular number (1378 = T₅₂).

The spelling of 549829 in words is "five hundred forty-nine thousand, eight hundred twenty-nine".