65448819 has 12 divisors (see below), whose sum is σ = 97092736. Its totient is φ = 42453072.

The previous prime is 65448811. The next prime is 65448829. The reversal of 65448819 is 91884456.

It is not a de Polignac number, because 65448819 - 2³ = 65448811 is a prime.

It is a super-2 number, since 2×65448819² = 8567095816989522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65448811) 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, 97939 + ... + 98604.

Almost surely, 2^65448819 is an apocalyptic number.

65448819 is a deficient number, since it is larger than the sum of its proper divisors (31643917).

65448819 is a wasteful number, since it uses less digits than its factorization.

65448819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196586 (or 196583 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 65448819 is about 8090.0444374552. The cubic root of 65448819 is about 402.9958786756.

The spelling of 65448819 in words is "sixty-five million, four hundred forty-eight thousand, eight hundred nineteen".