65789712 has 80 divisors (see below), whose sum is σ = 191743680. Its totient is φ = 21593088.

The previous prime is 65789653. The next prime is 65789741. The reversal of 65789712 is 21798756.

65789712 is a `hidden beast` number, since 6 + 578 + 9 + 71 + 2 = 666.

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, 27808 + ... + 30080.

It is an arithmetic number, because the mean of its divisors is an integer number (2396796).

Almost surely, 2^65789712 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 65789712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95871840).

65789712 is an abundant number, since it is smaller than the sum of its proper divisors (125953968).

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

65789712 is a wasteful number, since it uses less digits than its factorization.

65789712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357 (or 2345 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 65789712 is about 8111.0857472967. The cubic root of 65789712 is about 403.6943412302.

It can be divided in two parts, 6578 and 9712, that added together give a triangular number (16290 = T₁₈₀).

The spelling of 65789712 in words is "sixty-five million, seven hundred eighty-nine thousand, seven hundred twelve".