65873984 has 56 divisors (see below), whose sum is σ = 143853408. Its totient is φ = 29680640.

The previous prime is 65873971. The next prime is 65873999. The reversal of 65873984 is 48937856.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96107 + ... + 96789.

Almost surely, 2^65873984 is an apocalyptic number.

65873984 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65873984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71926704).

65873984 is an abundant number, since it is smaller than the sum of its proper divisors (77979424).

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

65873984 is a wasteful number, since it uses less digits than its factorization.

65873984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843 (or 833 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 50.

The square root of 65873984 is about 8116.2789503565. The cubic root of 65873984 is about 403.8666357173.

The spelling of 65873984 in words is "sixty-five million, eight hundred seventy-three thousand, nine hundred eighty-four".