547989 has 8 divisors (see below), whose sum is σ = 786912. Its totient is φ = 337200.

The previous prime is 547957. The next prime is 547999. The reversal of 547989 is 989745.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 547989 - 2⁵ = 547957 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 547989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (547909) 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, 6987 + ... + 7064.

It is an arithmetic number, because the mean of its divisors is an integer number (98364).

2⁵⁴⁷⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

547989 is a deficient number, since it is larger than the sum of its proper divisors (238923).

547989 is a wasteful number, since it uses less digits than its factorization.

547989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14067.

The product of its digits is 90720, while the sum is 42.

The square root of 547989 is about 740.2627911762. The cubic root of 547989 is about 81.8321472233.

The spelling of 547989 in words is "five hundred forty-seven thousand, nine hundred eighty-nine".