545489 has 8 divisors (see below), whose sum is σ = 628800. Its totient is φ = 463536.

The previous prime is 545483. The next prime is 545497. The reversal of 545489 is 984545.

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

It is a cyclic number.

It is not a de Polignac number, because 545489 - 2⁴ = 545473 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (545483) 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, 782 + ... + 1304.

It is an arithmetic number, because the mean of its divisors is an integer number (78600).

2⁵⁴⁵⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

545489 is a deficient number, since it is larger than the sum of its proper divisors (83311).

545489 is a wasteful number, since it uses less digits than its factorization.

545489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679.

The product of its digits is 28800, while the sum is 35.

The square root of 545489 is about 738.5722713452. The cubic root of 545489 is about 81.7075143890.

The spelling of 545489 in words is "five hundred forty-five thousand, four hundred eighty-nine".