65867328 has 84 divisors (see below), whose sum is σ = 190175388. Its totient is φ = 21795840.

The previous prime is 65867311. The next prime is 65867341. The reversal of 65867328 is 82376856.

It can be written as a sum of positive squares in 2 ways, for example, as 56430144 + 9437184 = 7512^2 + 3072^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99318 + ... + 99978.

Almost surely, 2^65867328 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 65867328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95087694).

65867328 is an abundant number, since it is smaller than the sum of its proper divisors (124308060).

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

65867328 is a wasteful number, since it uses less digits than its factorization.

65867328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852 (or 839 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 65867328 is about 8115.8688998776. The cubic root of 65867328 is about 403.8530328415.

The spelling of 65867328 in words is "sixty-five million, eight hundred sixty-seven thousand, three hundred twenty-eight".