65409896 has 8 divisors (see below), whose sum is σ = 122643570. Its totient is φ = 32704944.

The previous prime is 65409859. The next prime is 65409899. The reversal of 65409896 is 69890456.

65409896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 54612100 + 10797796 = 7390^2 + 3286^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 65409896.

It is not an unprimeable number, because it can be changed into a prime (65409899) 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 as a sum of consecutive naturals, namely, 4088111 + ... + 4088126.

Almost surely, 2^65409896 is an apocalyptic number.

It is an amenable number.

65409896 is a deficient number, since it is larger than the sum of its proper divisors (57233674).

65409896 is a wasteful number, since it uses less digits than its factorization.

65409896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8176243 (or 8176239 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 65409896 is about 8087.6384686755. The cubic root of 65409896 is about 402.9159744117.

The spelling of 65409896 in words is "sixty-five million, four hundred nine thousand, eight hundred ninety-six".