65321382 has 64 divisors (see below), whose sum is σ = 153538560. Its totient is φ = 18143136.

The previous prime is 65321381. The next prime is 65321393. The reversal of 65321382 is 28312356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65321381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 391063 + ... + 391229.

It is an arithmetic number, because the mean of its divisors is an integer number (2399040).

Almost surely, 2^65321382 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65321382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76769280).

65321382 is an abundant number, since it is smaller than the sum of its proper divisors (88217178).

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

65321382 is a wasteful number, since it uses less digits than its factorization.

65321382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385.

The product of its digits is 8640, while the sum is 30.

The square root of 65321382 is about 8082.1644378223. The cubic root of 65321382 is about 402.7341476760.

It can be divided in two parts, 65321 and 382, that added together give a triangular number (65703 = T₃₆₂).

The spelling of 65321382 in words is "sixty-five million, three hundred twenty-one thousand, three hundred eighty-two".