64627201 has 2 divisors, whose sum is σ = 64627202. Its totient is φ = 64627200.

The previous prime is 64627187. The next prime is 64627207. The reversal of 64627201 is 10272646.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64400625 + 226576 = 8025^2 + 476^2 .

It is a cyclic number.

It is not a de Polignac number, because 64627201 - 2⁵ = 64627169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64627201.

It is not a weakly prime, because it can be changed into another prime (64627207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32313600 + 32313601.

It is an arithmetic number, because the mean of its divisors is an integer number (32313601).

Almost surely, 2^64627201 is an apocalyptic number.

It is an amenable number.

64627201 is a deficient number, since it is larger than the sum of its proper divisors (1).

64627201 is an equidigital number, since it uses as much as digits as its factorization.

64627201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 64627201 is about 8039.1044899292. The cubic root of 64627201 is about 401.3024233806.

Adding to 64627201 its reverse (10272646), we get a palindrome (74899847).

The spelling of 64627201 in words is "sixty-four million, six hundred twenty-seven thousand, two hundred one".