65220679 has 2 divisors, whose sum is σ = 65220680. Its totient is φ = 65220678.

The previous prime is 65220667. The next prime is 65220691. The reversal of 65220679 is 97602256.

65220679 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (65220667) and next prime (65220691).

It is a cyclic number.

It is not a de Polignac number, because 65220679 - 2⁵ = 65220647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65220979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32610339 + 32610340.

It is an arithmetic number, because the mean of its divisors is an integer number (32610340).

Almost surely, 2^65220679 is an apocalyptic number.

65220679 is a deficient number, since it is larger than the sum of its proper divisors (1).

65220679 is an equidigital number, since it uses as much as digits as its factorization.

65220679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 65220679 is about 8075.9320824286. The cubic root of 65220679 is about 402.5270822666.

The spelling of 65220679 in words is "sixty-five million, two hundred twenty thousand, six hundred seventy-nine".