65628113 has 2 divisors, whose sum is σ = 65628114. Its totient is φ = 65628112.

The previous prime is 65628107. The next prime is 65628133. The reversal of 65628113 is 31182656.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63473089 + 2155024 = 7967^2 + 1468^2 .

It is a cyclic number.

It is not a de Polignac number, because 65628113 - 2⁴ = 65628097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 65628113.

It is not a weakly prime, because it can be changed into another prime (65628103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32814056 + 32814057.

It is an arithmetic number, because the mean of its divisors is an integer number (32814057).

Almost surely, 2^65628113 is an apocalyptic number.

It is an amenable number.

65628113 is a deficient number, since it is larger than the sum of its proper divisors (1).

65628113 is an equidigital number, since it uses as much as digits as its factorization.

65628113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The square root of 65628113 is about 8101.1180092627. The cubic root of 65628113 is about 403.3635393143.

The spelling of 65628113 in words is "sixty-five million, six hundred twenty-eight thousand, one hundred thirteen".