654441 has 12 divisors (see below), whose sum is σ = 905616. Its totient is φ = 420360.

The previous prime is 654439. The next prime is 654491. The reversal of 654441 is 144456.

It is not a de Polignac number, because 654441 - 2¹ = 654439 is a prime.

It is a Curzon number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (654421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2770 + ... + 2996.

It is an arithmetic number, because the mean of its divisors is an integer number (75468).

2⁶⁵⁴⁴⁴¹ is an apocalyptic number.

It is an amenable number.

654441 is a deficient number, since it is larger than the sum of its proper divisors (251175).

654441 is a wasteful number, since it uses less digits than its factorization.

654441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 261 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 654441 is about 808.9752777434. The cubic root of 654441 is about 86.8207433417.

Adding to 654441 its reverse (144456), we get a palindrome (798897).

The spelling of 654441 in words is "six hundred fifty-four thousand, four hundred forty-one".