65963728 has 20 divisors (see below), whose sum is σ = 127947168. Its totient is φ = 32945120.

The previous prime is 65963713. The next prime is 65963741. The reversal of 65963728 is 82736956.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17883 + ... + 21253.

Almost surely, 2^65963728 is an apocalyptic number.

It is an amenable number.

65963728 is a deficient number, since it is larger than the sum of its proper divisors (61983440).

65963728 is a wasteful number, since it uses less digits than its factorization.

65963728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4602 (or 4596 counting only the distinct ones).

The product of its digits is 544320, while the sum is 46.

The square root of 65963728 is about 8121.8057105548. The cubic root of 65963728 is about 404.0499562444.

The spelling of 65963728 in words is "sixty-five million, nine hundred sixty-three thousand, seven hundred twenty-eight".