78682448 has 40 divisors (see below), whose sum is σ = 171322368. Its totient is φ = 34733952.

The previous prime is 78682397. The next prime is 78682451. The reversal of 78682448 is 84428687.

It is a happy number.

It is a congruent 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, 3440 + ... + 13007.

Almost surely, 2^78682448 is an apocalyptic number.

It is an amenable number.

78682448 is an abundant number, since it is smaller than the sum of its proper divisors (92639920).

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

78682448 is a wasteful number, since it uses less digits than its factorization.

78682448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16491 (or 16485 counting only the distinct ones).

The product of its digits is 688128, while the sum is 47.

The square root of 78682448 is about 8870.3127340585. The cubic root of 78682448 is about 428.5083487265.

The spelling of 78682448 in words is "seventy-eight million, six hundred eighty-two thousand, four hundred forty-eight".