65449073 has 2 divisors, whose sum is σ = 65449074. Its totient is φ = 65449072.

The previous prime is 65449067. The next prime is 65449121. The reversal of 65449073 is 37094456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58859584 + 6589489 = 7672^2 + 2567^2 .

It is a cyclic number.

It is not a de Polignac number, because 65449073 - 2⁶ = 65449009 is a prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (65449063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32724536 + 32724537.

It is an arithmetic number, because the mean of its divisors is an integer number (32724537).

Almost surely, 2^65449073 is an apocalyptic number.

It is an amenable number.

65449073 is a deficient number, since it is larger than the sum of its proper divisors (1).

65449073 is an equidigital number, since it uses as much as digits as its factorization.

65449073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 65449073 is about 8090.0601357468. The cubic root of 65449073 is about 402.9964000031.

The spelling of 65449073 in words is "sixty-five million, four hundred forty-nine thousand, seventy-three".