78768860 has 24 divisors (see below), whose sum is σ = 166036416. Its totient is φ = 31389120.

The previous prime is 78768857. The next prime is 78768869. The reversal of 78768860 is 6886787.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 78768799 and 78768808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78768869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1847 + ... + 12686.

It is an arithmetic number, because the mean of its divisors is an integer number (6918184).

Almost surely, 2^78768860 is an apocalyptic number.

It is an amenable number.

78768860 is an abundant number, since it is smaller than the sum of its proper divisors (87267556).

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

78768860 is a wasteful number, since it uses less digits than its factorization.

78768860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14813 (or 14811 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 50.

The square root of 78768860 is about 8875.1822516498. The cubic root of 78768860 is about 428.6651592875.

The spelling of 78768860 in words is "seventy-eight million, seven hundred sixty-eight thousand, eight hundred sixty".