547720 has 16 divisors (see below), whose sum is σ = 1232460. Its totient is φ = 219072.

The previous prime is 547709. The next prime is 547727. The reversal of 547720 is 27745.

It can be written as a sum of positive squares in 2 ways, for example, as 498436 + 49284 = 706^2 + 222^2 .

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (547727) by changing a digit.

547720 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, 6807 + ... + 6886.

2⁵⁴⁷⁷²⁰ is an apocalyptic number.

It is an amenable number.

547720 is an abundant number, since it is smaller than the sum of its proper divisors (684740).

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

547720 is a wasteful number, since it uses less digits than its factorization.

547720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13704 (or 13700 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 547720 is about 740.0810766396. The cubic root of 547720 is about 81.8187549530.

Adding to 547720 its sum of digits (25), we get a palindrome (547745).

The spelling of 547720 in words is "five hundred forty-seven thousand, seven hundred twenty".