65609488 has 20 divisors (see below), whose sum is σ = 145278400. Its totient is φ = 28118304.

The previous prime is 65609483. The next prime is 65609497. The reversal of 65609488 is 88490656.

65609488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (65609483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292788 + ... + 293011.

It is an arithmetic number, because the mean of its divisors is an integer number (7263920).

Almost surely, 2^65609488 is an apocalyptic number.

It is an amenable number.

65609488 is an abundant number, since it is smaller than the sum of its proper divisors (79668912).

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

65609488 is a wasteful number, since it uses less digits than its factorization.

65609488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585814 (or 585808 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 65609488 is about 8099.9683950001. The cubic root of 65609488 is about 403.3253780428.

The spelling of 65609488 in words is "sixty-five million, six hundred nine thousand, four hundred eighty-eight".