65244779 has 2 divisors, whose sum is σ = 65244780. Its totient is φ = 65244778.

The previous prime is 65244763. The next prime is 65244791. The reversal of 65244779 is 97744256.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65244779 - 2⁴ = 65244763 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65244709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32622389 + 32622390.

It is an arithmetic number, because the mean of its divisors is an integer number (32622390).

Almost surely, 2^65244779 is an apocalyptic number.

65244779 is a deficient number, since it is larger than the sum of its proper divisors (1).

65244779 is an equidigital number, since it uses as much as digits as its factorization.

65244779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 44.

The square root of 65244779 is about 8077.4240324499. The cubic root of 65244779 is about 402.5766560531.

The spelling of 65244779 in words is "sixty-five million, two hundred forty-four thousand, seven hundred seventy-nine".