65797228 has 48 divisors (see below), whose sum is σ = 139310080. Its totient is φ = 26562816.

The previous prime is 65797219. The next prime is 65797229. The reversal of 65797228 is 82279756.

It is not an unprimeable number, because it can be changed into a prime (65797229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179101 + ... + 179467.

Almost surely, 2^65797228 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 65797228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69655040).

65797228 is an abundant number, since it is smaller than the sum of its proper divisors (73512852).

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

65797228 is a wasteful number, since it uses less digits than its factorization.

65797228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734 (or 732 counting only the distinct ones).

The product of its digits is 423360, while the sum is 46.

The square root of 65797228 is about 8111.5490505821. The cubic root of 65797228 is about 403.7097137003.

The spelling of 65797228 in words is "sixty-five million, seven hundred ninety-seven thousand, two hundred twenty-eight".