547985 has 4 divisors (see below), whose sum is σ = 657588. Its totient is φ = 438384.

The previous prime is 547957. The next prime is 547999. The reversal of 547985 is 589745.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 430336 + 117649 = 656^2 + 343^2 .

It is a cyclic number.

It is not a de Polignac number, because 547985 - 2¹⁰ = 546961 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54794 + ... + 54803.

It is an arithmetic number, because the mean of its divisors is an integer number (164397).

2⁵⁴⁷⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

547985 is a deficient number, since it is larger than the sum of its proper divisors (109603).

547985 is a wasteful number, since it uses less digits than its factorization.

547985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109602.

The product of its digits is 50400, while the sum is 38.

The square root of 547985 is about 740.2600894280. The cubic root of 547985 is about 81.8319481139.

The spelling of 547985 in words is "five hundred forty-seven thousand, nine hundred eighty-five".