78886448 has 10 divisors (see below), whose sum is σ = 152842524. Its totient is φ = 39443216.

The previous prime is 78886439. The next prime is 78886453. The reversal of 78886448 is 84468887.

It is a self number, because there is not a number n which added to its sum of digits gives 78886448.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2465186 + ... + 2465217.

Almost surely, 2^78886448 is an apocalyptic number.

It is an amenable number.

78886448 is a deficient number, since it is larger than the sum of its proper divisors (73956076).

78886448 is a wasteful number, since it uses less digits than its factorization.

78886448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4930411 (or 4930405 counting only the distinct ones).

The product of its digits is 2752512, while the sum is 53.

The square root of 78886448 is about 8881.8043211951. The cubic root of 78886448 is about 428.8783603637.

The spelling of 78886448 in words is "seventy-eight million, eight hundred eighty-six thousand, four hundred forty-eight".