78705484 has 24 divisors (see below), whose sum is σ = 161815248. Its totient is φ = 33023040.

The previous prime is 78705463. The next prime is 78705491. The reversal of 78705484 is 48450787.

It is a self number, because there is not a number n which added to its sum of digits gives 78705484.

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 7 ways as a sum of consecutive naturals, for example, 68227 + ... + 69370.

It is an arithmetic number, because the mean of its divisors is an integer number (6742302).

Almost surely, 2^78705484 is an apocalyptic number.

It is an amenable number.

78705484 is an abundant number, since it is smaller than the sum of its proper divisors (83109764).

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

78705484 is a wasteful number, since it uses less digits than its factorization.

78705484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137625 (or 137623 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 43.

The square root of 78705484 is about 8871.6111276363. The cubic root of 78705484 is about 428.5501630295.

The spelling of 78705484 in words is "seventy-eight million, seven hundred five thousand, four hundred eighty-four".