78828714 has 48 divisors (see below), whose sum is σ = 180092640. Its totient is φ = 25835760.

The previous prime is 78828713. The next prime is 78828721. The reversal of 78828714 is 41782887.

It is a self number, because there is not a number n which added to its sum of digits gives 78828714.

It is not an unprimeable number, because it can be changed into a prime (78828713) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 28317 + ... + 30975.

It is an arithmetic number, because the mean of its divisors is an integer number (3751930).

Almost surely, 2^78828714 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78828714, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90046320).

78828714 is an abundant number, since it is smaller than the sum of its proper divisors (101263926).

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

78828714 is a wasteful number, since it uses less digits than its factorization.

78828714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737 (or 2725 counting only the distinct ones).

The product of its digits is 200704, while the sum is 45.

The square root of 78828714 is about 8878.5535984191. The cubic root of 78828714 is about 428.7737082261.

The spelling of 78828714 in words is "seventy-eight million, eight hundred twenty-eight thousand, seven hundred fourteen".