548609 has 4 divisors (see below), whose sum is σ = 550704. Its totient is φ = 546516.

The previous prime is 548591. The next prime is 548623. The reversal of 548609 is 906845.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 548609 - 2¹² = 544513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (548629) 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, 587 + ... + 1200.

It is an arithmetic number, because the mean of its divisors is an integer number (137676).

2⁵⁴⁸⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

548609 is a deficient number, since it is larger than the sum of its proper divisors (2095).

548609 is a wasteful number, since it uses less digits than its factorization.

548609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 548609 is about 740.6814429969. The cubic root of 548609 is about 81.8629974830.

The spelling of 548609 in words is "five hundred forty-eight thousand, six hundred nine".