78047968 has 24 divisors (see below), whose sum is σ = 154050120. Its totient is φ = 38924160.

The previous prime is 78047939. The next prime is 78047989. The reversal of 78047968 is 86974087.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 10498 + ... + 16318.

It is an arithmetic number, because the mean of its divisors is an integer number (6418755).

Almost surely, 2^78047968 is an apocalyptic number.

It is an amenable number.

78047968 is a deficient number, since it is larger than the sum of its proper divisors (76002152).

78047968 is a wasteful number, since it uses less digits than its factorization.

78047968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6250 (or 6242 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 78047968 is about 8834.4761021806. The cubic root of 78047968 is about 427.3534360727.

The spelling of 78047968 in words is "seventy-eight million, forty-seven thousand, nine hundred sixty-eight".