654217601 has 4 divisors (see below), whose sum is σ = 656092500. Its totient is φ = 652342704.

The previous prime is 654217591. The next prime is 654217649. The reversal of 654217601 is 106712456.

654217601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 288490225 + 365727376 = 16985^2 + 19124^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-654217601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (654217651) 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, 936926 + ... + 937623.

It is an arithmetic number, because the mean of its divisors is an integer number (164023125).

Almost surely, 2^654217601 is an apocalyptic number.

It is an amenable number.

654217601 is a deficient number, since it is larger than the sum of its proper divisors (1874899).

654217601 is a wasteful number, since it uses less digits than its factorization.

654217601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874898.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 654217601 is about 25577.6777874771. The cubic root of 654217601 is about 868.1086321775.

The spelling of 654217601 in words is "six hundred fifty-four million, two hundred seventeen thousand, six hundred one".