65822712 has 64 divisors (see below), whose sum is σ = 170069760. Its totient is φ = 21216000.

The previous prime is 65822693. The next prime is 65822747. The reversal of 65822712 is 21722856.

Its product of digits (13440) is a multiple of the sum of its prime divisors (640).

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, 148363 + ... + 148805.

It is an arithmetic number, because the mean of its divisors is an integer number (2657340).

Almost surely, 2^65822712 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 65822712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85034880).

65822712 is an abundant number, since it is smaller than the sum of its proper divisors (104247048).

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

65822712 is a wasteful number, since it uses less digits than its factorization.

65822712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644 (or 640 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 65822712 is about 8113.1197452028. The cubic root of 65822712 is about 403.7618273972.

The spelling of 65822712 in words is "sixty-five million, eight hundred twenty-two thousand, seven hundred twelve".