28568601 has 12 divisors (see below), whose sum is σ = 41319460. Its totient is φ = 19020960.

The previous prime is 28568597. The next prime is 28568629. The reversal of 28568601 is 10686582.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10497600 + 18071001 = 3240^2 + 4251^2 .

It is not a de Polignac number, because 28568601 - 2² = 28568597 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 (28568651) 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, 7635 + ... + 10743.

Almost surely, 2^28568601 is an apocalyptic number.

It is an amenable number.

28568601 is a deficient number, since it is larger than the sum of its proper divisors (12750859).

28568601 is a wasteful number, since it uses less digits than its factorization.

28568601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4136 (or 4133 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 28568601 is about 5344.9603366162. The cubic root of 28568601 is about 305.7006235134.

It can be divided in two parts, 285 and 68601, that added together give a palindrome (68886).

The spelling of 28568601 in words is "twenty-eight million, five hundred sixty-eight thousand, six hundred one".