65322712 has 64 divisors (see below), whose sum is σ = 153679680. Its totient is φ = 25339392.

The previous prime is 65322709. The next prime is 65322749. The reversal of 65322712 is 21722356.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37738 + ... + 39430.

It is an arithmetic number, because the mean of its divisors is an integer number (2401245).

Almost surely, 2^65322712 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 65322712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76839840).

65322712 is an abundant number, since it is smaller than the sum of its proper divisors (88356968).

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

65322712 is a wasteful number, since it uses less digits than its factorization.

65322712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772 (or 1768 counting only the distinct ones).

The product of its digits is 5040, while the sum is 28.

The square root of 65322712 is about 8082.2467173429. The cubic root of 65322712 is about 402.7368809963.

The spelling of 65322712 in words is "sixty-five million, three hundred twenty-two thousand, seven hundred twelve".