654549 has 16 divisors (see below), whose sum is σ = 1013760. Its totient is φ = 367920.

The previous prime is 654541. The next prime is 654553. The reversal of 654549 is 945456.

654549 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 654549 - 2³ = 654541 is a prime.

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

654549 is strictly pandigital in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1272 + ... + 1710.

It is an arithmetic number, because the mean of its divisors is an integer number (63360).

2⁶⁵⁴⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

654549 is a deficient number, since it is larger than the sum of its proper divisors (359211).

654549 is a wasteful number, since it uses less digits than its factorization.

654549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520.

The product of its digits is 21600, while the sum is 33.

The square root of 654549 is about 809.0420261025. The cubic root of 654549 is about 86.8255189821.

The spelling of 654549 in words is "six hundred fifty-four thousand, five hundred forty-nine".