78634048 has 14 divisors (see below), whose sum is σ = 156039566. Its totient is φ = 39316992.

The previous prime is 78634007. The next prime is 78634091. The reversal of 78634048 is 84043687.

It can be written as a sum of positive squares in only one way, i.e., 58491904 + 20142144 = 7648^2 + 4488^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 78634048.

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, 614265 + ... + 614392.

Almost surely, 2^78634048 is an apocalyptic number.

It is an amenable number.

78634048 is a deficient number, since it is larger than the sum of its proper divisors (77405518).

78634048 is a wasteful number, since it uses less digits than its factorization.

78634048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228669 (or 1228659 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 78634048 is about 8867.5841129363. The cubic root of 78634048 is about 428.4204678051.

It can be divided in two parts, 7863 and 4048, that added together give a palindrome (11911).

The spelling of 78634048 in words is "seventy-eight million, six hundred thirty-four thousand, forty-eight".