654601 has 2 divisors, whose sum is σ = 654602. Its totient is φ = 654600.

The previous prime is 654593. The next prime is 654611. The reversal of 654601 is 106456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 389376 + 265225 = 624^2 + 515^2 .

It is a cyclic number.

It is not a de Polignac number, because 654601 - 2³ = 654593 is a prime.

It is not a weakly prime, because it can be changed into another prime (654611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327300 + 327301.

It is an arithmetic number, because the mean of its divisors is an integer number (327301).

2⁶⁵⁴⁶⁰¹ is an apocalyptic number.

It is an amenable number.

654601 is a deficient number, since it is larger than the sum of its proper divisors (1).

654601 is an equidigital number, since it uses as much as digits as its factorization.

654601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 654601 is about 809.0741622373. The cubic root of 654601 is about 86.8278181771.

The spelling of 654601 in words is "six hundred fifty-four thousand, six hundred one".