65730449 has 12 divisors (see below), whose sum is σ = 70732800. Its totient is φ = 61059648.

The previous prime is 65730437. The next prime is 65730479. The reversal of 65730449 is 94403756.

It is not a de Polignac number, because 65730449 - 2⁸ = 65730193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65730409) 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 in 11 ways as a sum of consecutive naturals, for example, 21392 + ... + 24270.

It is an arithmetic number, because the mean of its divisors is an integer number (5894400).

Almost surely, 2^65730449 is an apocalyptic number.

It is an amenable number.

65730449 is a deficient number, since it is larger than the sum of its proper divisors (5002351).

65730449 is a wasteful number, since it uses less digits than its factorization.

65730449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992 (or 2975 counting only the distinct ones).

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

The square root of 65730449 is about 8107.4317141743. The cubic root of 65730449 is about 403.5730896232.

The spelling of 65730449 in words is "sixty-five million, seven hundred thirty thousand, four hundred forty-nine".