78789160 has 16 divisors (see below), whose sum is σ = 177275700. Its totient is φ = 31515648.

The previous prime is 78789127. The next prime is 78789187. The reversal of 78789160 is 6198787.

It can be written as a sum of positive squares in 2 ways, for example, as 74200996 + 4588164 = 8614^2 + 2142^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 78789160.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 984825 + ... + 984904.

Almost surely, 2^78789160 is an apocalyptic number.

It is an amenable number.

78789160 is an abundant number, since it is smaller than the sum of its proper divisors (98486540).

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

78789160 is a wasteful number, since it uses less digits than its factorization.

78789160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969740 (or 1969736 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 46.

The square root of 78789160 is about 8876.3258164626. The cubic root of 78789160 is about 428.7019807560.

The spelling of 78789160 in words is "seventy-eight million, seven hundred eighty-nine thousand, one hundred sixty".