78824328 has 64 divisors (see below), whose sum is σ = 216760320. Its totient is φ = 23688000.

The previous prime is 78824327. The next prime is 78824329. The reversal of 78824328 is 82342887.

It is an interprime number because it is at equal distance from previous prime (78824327) and next prime (78824329).

It is a self number, because there is not a number n which added to its sum of digits gives 78824328.

It is not an unprimeable number, because it can be changed into a prime (78824321) 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 15 ways as a sum of consecutive naturals, for example, 32353 + ... + 34703.

It is an arithmetic number, because the mean of its divisors is an integer number (3386880).

Almost surely, 2^78824328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78824328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108380160).

78824328 is an abundant number, since it is smaller than the sum of its proper divisors (137935992).

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

78824328 is a wasteful number, since it uses less digits than its factorization.

78824328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498 (or 2494 counting only the distinct ones).

The product of its digits is 172032, while the sum is 42.

The square root of 78824328 is about 8878.3065952917. The cubic root of 78824328 is about 428.7657558093.

The spelling of 78824328 in words is "seventy-eight million, eight hundred twenty-four thousand, three hundred twenty-eight".