78860336 has 40 divisors (see below), whose sum is σ = 162006000. Its totient is φ = 37082880.

The previous prime is 78860333. The next prime is 78860347. The reversal of 78860336 is 63306887.

It is a junction number, because it is equal to n+sod(n) for n = 78860293 and 78860302.

It is not an unprimeable number, because it can be changed into a prime (78860333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44426 + ... + 46166.

It is an arithmetic number, because the mean of its divisors is an integer number (4050150).

Almost surely, 2^78860336 is an apocalyptic number.

78860336 is a gapful number since it is divisible by the number (76) 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 78860336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81003000).

78860336 is an abundant number, since it is smaller than the sum of its proper divisors (83145664).

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

78860336 is a wasteful number, since it uses less digits than its factorization.

78860336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917 (or 1911 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 78860336 is about 8880.3342279444. The cubic root of 78860336 is about 428.8310345011.

The spelling of 78860336 in words is "seventy-eight million, eight hundred sixty thousand, three hundred thirty-six".