78912748 has 12 divisors (see below), whose sum is σ = 139761720. Its totient is φ = 38980832.

The previous prime is 78912703. The next prime is 78912773. The reversal of 78912748 is 84721987.

It is a junction number, because it is equal to n+sod(n) for n = 78912698 and 78912707.

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, 118513 + ... + 119176.

It is an arithmetic number, because the mean of its divisors is an integer number (11646810).

Almost surely, 2^78912748 is an apocalyptic number.

It is an amenable number.

78912748 is a deficient number, since it is larger than the sum of its proper divisors (60848972).

78912748 is a wasteful number, since it uses less digits than its factorization.

78912748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237776 (or 237774 counting only the distinct ones).

The product of its digits is 225792, while the sum is 46.

The square root of 78912748 is about 8883.2847528378. The cubic root of 78912748 is about 428.9260164056.

The spelling of 78912748 in words is "seventy-eight million, nine hundred twelve thousand, seven hundred forty-eight".