78844752 has 120 divisors (see below), whose sum is σ = 261608256. Its totient is φ = 22519296.

The previous prime is 78844751. The next prime is 78844781. The reversal of 78844752 is 25744887.

It is a junction number, because it is equal to n+sod(n) for n = 78844698 and 78844707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78844751) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 25768 + ... + 28664.

Almost surely, 2^78844752 is an apocalyptic number.

78844752 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78844752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130804128).

78844752 is an abundant number, since it is smaller than the sum of its proper divisors (182763504).

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

78844752 is a wasteful number, since it uses less digits than its factorization.

78844752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2927 (or 2909 counting only the distinct ones).

The product of its digits is 501760, while the sum is 45.

The square root of 78844752 is about 8879.4567401390. The cubic root of 78844752 is about 428.8027847985.

The spelling of 78844752 in words is "seventy-eight million, eight hundred forty-four thousand, seven hundred fifty-two".