65463728 has 40 divisors (see below), whose sum is σ = 138848256. Its totient is φ = 29652800.

The previous prime is 65463707. The next prime is 65463731. The reversal of 65463728 is 82736456.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75425 + ... + 76287.

Almost surely, 2^65463728 is an apocalyptic number.

It is an amenable number.

65463728 is an abundant number, since it is smaller than the sum of its proper divisors (73384528).

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

65463728 is a wasteful number, since it uses less digits than its factorization.

65463728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313 (or 1307 counting only the distinct ones).

The product of its digits is 241920, while the sum is 41.

The square root of 65463728 is about 8090.9658261545. The cubic root of 65463728 is about 403.0264766781.

The spelling of 65463728 in words is "sixty-five million, four hundred sixty-three thousand, seven hundred twenty-eight".