547749 has 8 divisors (see below), whose sum is σ = 811520. Its totient is φ = 365148.

The previous prime is 547747. The next prime is 547753. The reversal of 547749 is 947745.

It is a happy number.

547749 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 547749 - 2¹ = 547747 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 547749.

It is not an unprimeable number, because it can be changed into a prime (547741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10117 + ... + 10170.

It is an arithmetic number, because the mean of its divisors is an integer number (101440).

2⁵⁴⁷⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

547749 is a deficient number, since it is larger than the sum of its proper divisors (263771).

547749 is a wasteful number, since it uses less digits than its factorization.

547749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20296 (or 20290 counting only the distinct ones).

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

The square root of 547749 is about 740.1006688282. The cubic root of 547749 is about 81.8201989402.

It can be divided in two parts, 547 and 749, that added together give a 4-th power (1296 = 6⁴).

The spelling of 547749 in words is "five hundred forty-seven thousand, seven hundred forty-nine".