547856 has 20 divisors (see below), whose sum is σ = 1075452. Its totient is φ = 270336.

The previous prime is 547853. The next prime is 547871. The reversal of 547856 is 658745.

It can be written as a sum of positive squares in 2 ways, for example, as 234256 + 313600 = 484^2 + 560^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (547853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1376 + ... + 1728.

547856 is a Friedman number, since it can be written as (7*5-5)^4-8^6, using all its digits and the basic arithmetic operations.

2⁵⁴⁷⁸⁵⁶ is an apocalyptic number.

It is an amenable number.

547856 is a deficient number, since it is larger than the sum of its proper divisors (527596).

547856 is a wasteful number, since it uses less digits than its factorization.

547856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 452 counting only the distinct ones).

The product of its digits is 33600, while the sum is 35.

The square root of 547856 is about 740.1729527617. The cubic root of 547856 is about 81.8255263141.

Subtracting 547856 from its reverse (658745), we obtain a square (110889 = 333²).

The spelling of 547856 in words is "five hundred forty-seven thousand, eight hundred fifty-six".