65740079 has 2 divisors, whose sum is σ = 65740080. Its totient is φ = 65740078.

The previous prime is 65740069. The next prime is 65740159. The reversal of 65740079 is 97004756.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65740079 - 2⁴ = 65740063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65740039) 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, 32870039 + 32870040.

It is an arithmetic number, because the mean of its divisors is an integer number (32870040).

Almost surely, 2^65740079 is an apocalyptic number.

65740079 is a deficient number, since it is larger than the sum of its proper divisors (1).

65740079 is an equidigital number, since it uses as much as digits as its factorization.

65740079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 65740079 is about 8108.0255919675. The cubic root of 65740079 is about 403.5927974812.

The spelling of 65740079 in words is "sixty-five million, seven hundred forty thousand, seventy-nine".