78817596 has 96 divisors (see below), whose sum is σ = 225566208. Its totient is φ = 21077760.

The previous prime is 78817561. The next prime is 78817603. The reversal of 78817596 is 69571887.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 38470 + ... + 40466.

It is an arithmetic number, because the mean of its divisors is an integer number (2349648).

Almost surely, 2^78817596 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 78817596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112783104).

78817596 is an abundant number, since it is smaller than the sum of its proper divisors (146748612).

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

78817596 is a wasteful number, since it uses less digits than its factorization.

78817596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051 (or 2049 counting only the distinct ones).

The product of its digits is 846720, while the sum is 51.

The square root of 78817596 is about 8877.9274608435. The cubic root of 78817596 is about 428.7535492004.

The spelling of 78817596 in words is "seventy-eight million, eight hundred seventeen thousand, five hundred ninety-six".