78065648 has 10 divisors (see below), whose sum is σ = 151252224. Its totient is φ = 39032816.

The previous prime is 78065639. The next prime is 78065677. The reversal of 78065648 is 84656087.

It is a super-3 number, since 3×78065648³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78065599 and 78065608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2439536 + ... + 2439567.

Almost surely, 2^78065648 is an apocalyptic number.

It is an amenable number.

78065648 is a deficient number, since it is larger than the sum of its proper divisors (73186576).

78065648 is a wasteful number, since it uses less digits than its factorization.

78065648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4879111 (or 4879105 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 78065648 is about 8835.4766707858. The cubic root of 78065648 is about 427.3857027180.

The spelling of 78065648 in words is "seventy-eight million, sixty-five thousand, six hundred forty-eight".