65795777 has 2 divisors, whose sum is σ = 65795778. Its totient is φ = 65795776.

The previous prime is 65795773. The next prime is 65795783. The reversal of 65795777 is 77759756.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46117681 + 19678096 = 6791^2 + 4436^2 .

It is a cyclic number.

It is not a de Polignac number, because 65795777 - 2² = 65795773 is a prime.

It is not a weakly prime, because it can be changed into another prime (65795773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32897888 + 32897889.

It is an arithmetic number, because the mean of its divisors is an integer number (32897889).

Almost surely, 2^65795777 is an apocalyptic number.

It is an amenable number.

65795777 is a deficient number, since it is larger than the sum of its proper divisors (1).

65795777 is an equidigital number, since it uses as much as digits as its factorization.

65795777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3241350, while the sum is 53.

The square root of 65795777 is about 8111.4596097127. The cubic root of 65795777 is about 403.7067460621.

The spelling of 65795777 in words is "sixty-five million, seven hundred ninety-five thousand, seven hundred seventy-seven".