547220 has 12 divisors (see below), whose sum is σ = 1149204. Its totient is φ = 218880.

The previous prime is 547171. The next prime is 547223. The reversal of 547220 is 22745.

It can be written as a sum of positive squares in 2 ways, for example, as 264196 + 283024 = 514^2 + 532^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 27361 = 547220 / (5 + 4 + 7 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 547192 and 547201.

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 547220.

It is not an unprimeable number, because it can be changed into a prime (547223) by changing a digit.

547220 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13661 + ... + 13700.

It is an arithmetic number, because the mean of its divisors is an integer number (95767).

2⁵⁴⁷²²⁰ is an apocalyptic number.

It is an amenable number.

547220 is an abundant number, since it is smaller than the sum of its proper divisors (601984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

547220 is a wasteful number, since it uses less digits than its factorization.

547220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27370 (or 27368 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 547220 is about 739.7431986845. The cubic root of 547220 is about 81.7938506027.

Adding to 547220 its reverse (22745), we get a palindrome (569965).

It can be divided in two parts, 547 and 220, that added together give a palindrome (767).

The spelling of 547220 in words is "five hundred forty-seven thousand, two hundred twenty".