654401 has 8 divisors (see below), whose sum is σ = 731808. Its totient is φ = 580000.

The previous prime is 654397. The next prime is 654413. The reversal of 654401 is 104456.

It is a happy number.

654401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 654401 - 2² = 654397 is a prime.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 275 + ... + 1176.

It is an arithmetic number, because the mean of its divisors is an integer number (91476).

2⁶⁵⁴⁴⁰¹ is an apocalyptic number.

It is an amenable number.

654401 is a deficient number, since it is larger than the sum of its proper divisors (77407).

654401 is a wasteful number, since it uses less digits than its factorization.

654401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 654401 is about 808.9505547313. The cubic root of 654401 is about 86.8189744527.

Adding to 654401 its reverse (104456), we get a palindrome (758857).

Subtracting from 654401 its reverse (104456), we obtain a palindrome (549945).

The spelling of 654401 in words is "six hundred fifty-four thousand, four hundred one".