65448099 has 24 divisors (see below), whose sum is σ = 100963200. Its totient is φ = 40763520.

The previous prime is 65448067. The next prime is 65448109. The reversal of 65448099 is 99084456.

It is a happy number.

It is a Cunningham number, because it is equal to 8090²-1.

It is not a de Polignac number, because 65448099 - 2⁵ = 65448067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65448029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4047 + ... + 12135.

It is an arithmetic number, because the mean of its divisors is an integer number (4206800).

Almost surely, 2^65448099 is an apocalyptic number.

65448099 is a deficient number, since it is larger than the sum of its proper divisors (35515101).

65448099 is a wasteful number, since it uses less digits than its factorization.

65448099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8155 (or 8152 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 65448099 is about 8089.9999381953. Note that the first 4 decimals coincide. The cubic root of 65448099 is about 402.9944008893.

The spelling of 65448099 in words is "sixty-five million, four hundred forty-eight thousand, ninety-nine".