549747 has 20 divisors (see below), whose sum is σ = 897336. Its totient is φ = 332640.

The previous prime is 549739. The next prime is 549749. The reversal of 549747 is 747945.

It is a happy number.

549747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 549747 - 2³ = 549739 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 549747.

It is not an unprimeable number, because it can be changed into a prime (549749) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 583 + ... + 1199.

2⁵⁴⁹⁷⁴⁷ is an apocalyptic number.

549747 is a deficient number, since it is larger than the sum of its proper divisors (347589).

549747 is a wasteful number, since it uses less digits than its factorization.

549747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640 (or 631 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 549747 is about 741.4492565240. The cubic root of 549747 is about 81.9195622071.

It can be divided in two parts, 549 and 747, that added together give a 4-th power (1296 = 6⁴).

The spelling of 549747 in words is "five hundred forty-nine thousand, seven hundred forty-seven".