65869456 has 15 divisors (see below), whose sum is σ = 127685001. Its totient is φ = 32918496.

The previous prime is 65869403. The next prime is 65869457. The reversal of 65869456 is 65496856.

It is a happy number.

The square root of 65869456 is 8116.

It is a perfect power (a square), and thus also a powerful number.

65869456 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., 65351056 + 518400 = 8084^2 + 720^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65869457) 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 2 ways as a sum of consecutive naturals, for example, 31450 + ... + 33478.

Almost surely, 2^65869456 is an apocalyptic number.

65869456 is the 8116-th square number.

It is an amenable number.

65869456 is a deficient number, since it is larger than the sum of its proper divisors (61815545).

65869456 is an frugal number, since it uses more digits than its factorization.

65869456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4066 (or 2031 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 49.

The cubic root of 65869456 is about 403.8573819375.

Multiplying 65869456 by its sum of digits (49), we get a square (3227603344 = 56812²).

The spelling of 65869456 in words is "sixty-five million, eight hundred sixty-nine thousand, four hundred fifty-six".