65447248 has 40 divisors (see below), whose sum is σ = 134053920. Its totient is φ = 30867840.

The previous prime is 65447203. The next prime is 65447251. The reversal of 65447248 is 84274456.

It is a happy number.

65447248 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 65447248.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139911 + ... + 140377.

It is an arithmetic number, because the mean of its divisors is an integer number (3351348).

Almost surely, 2^65447248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65447248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67026960).

65447248 is an abundant number, since it is smaller than the sum of its proper divisors (68606672).

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

65447248 is a wasteful number, since it uses less digits than its factorization.

65447248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955 (or 949 counting only the distinct ones).

The product of its digits is 215040, while the sum is 40.

The square root of 65447248 is about 8089.9473422266. The cubic root of 65447248 is about 402.9926542141.

The spelling of 65447248 in words is "sixty-five million, four hundred forty-seven thousand, two hundred forty-eight".