65117448 has 48 divisors (see below), whose sum is σ = 192394800. Its totient is φ = 19732320.

The previous prime is 65117417. The next prime is 65117449. The reversal of 65117448 is 84471156.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (65117449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40318 + ... + 41901.

It is an arithmetic number, because the mean of its divisors is an integer number (4008225).

Almost surely, 2^65117448 is an apocalyptic number.

It is an amenable number.

65117448 is an abundant number, since it is smaller than the sum of its proper divisors (127277352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65117448 is a wasteful number, since it uses less digits than its factorization.

65117448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82242 (or 82235 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 65117448 is about 8069.5382767541. The cubic root of 65117448 is about 402.3145974299.

The spelling of 65117448 in words is "sixty-five million, one hundred seventeen thousand, four hundred forty-eight".