65480993 has 2 divisors, whose sum is σ = 65480994. Its totient is φ = 65480992.

The previous prime is 65480971. The next prime is 65481037. The reversal of 65480993 is 39908456.

65480993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (65481037) can be obtained adding 65480993 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65480464 + 529 = 8092^2 + 23^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65480993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65480903) 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, 32740496 + 32740497.

It is an arithmetic number, because the mean of its divisors is an integer number (32740497).

Almost surely, 2^65480993 is an apocalyptic number.

It is an amenable number.

65480993 is a deficient number, since it is larger than the sum of its proper divisors (1).

65480993 is an equidigital number, since it uses as much as digits as its factorization.

65480993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 65480993 is about 8092.0326865380. The cubic root of 65480993 is about 403.0619041365.

The spelling of 65480993 in words is "sixty-five million, four hundred eighty thousand, nine hundred ninety-three".