78610928 has 40 divisors (see below), whose sum is σ = 166797360. Its totient is φ = 35594240.

The previous prime is 78610927. The next prime is 78610933. The reversal of 78610928 is 82901687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78610921) 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 7 ways as a sum of consecutive naturals, for example, 55088 + ... + 56496.

It is an arithmetic number, because the mean of its divisors is an integer number (4169934).

Almost surely, 2^78610928 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 78610928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83398680).

78610928 is an abundant number, since it is smaller than the sum of its proper divisors (88186432).

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

78610928 is a wasteful number, since it uses less digits than its factorization.

78610928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745 (or 1739 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 78610928 is about 8866.2803925885. The cubic root of 78610928 is about 428.3784755961.

The spelling of 78610928 in words is "seventy-eight million, six hundred ten thousand, nine hundred twenty-eight".