78892928 has 32 divisors (see below), whose sum is σ = 159401520. Its totient is φ = 38886400.

The previous prime is 78892927. The next prime is 78892939. The reversal of 78892928 is 82929887.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 78892928.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78892927) 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 3 ways as a sum of consecutive naturals, for example, 4748 + ... + 13428.

Almost surely, 2^78892928 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 78892928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79700760).

78892928 is an abundant number, since it is smaller than the sum of its proper divisors (80508592).

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

78892928 is an equidigital number, since it uses as much as digits as its factorization.

78892928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8766 (or 8754 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 53.

The square root of 78892928 is about 8882.1691044474. The cubic root of 78892928 is about 428.8901032158.

The spelling of 78892928 in words is "seventy-eight million, eight hundred ninety-two thousand, nine hundred twenty-eight".