78316 has 12 divisors (see below), whose sum is σ = 156688. Its totient is φ = 33552.

The previous prime is 78311. The next prime is 78317. The reversal of 78316 is 61387.

78316 is an admirable number.

It is a super-2 number, since 2×78316² = 12266791712, which contains 22 as substring.

It is a nialpdrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (78311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1371 + ... + 1426.

2⁷⁸³¹⁶ is an apocalyptic number.

It is an amenable number.

78316 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78344).

78316 is a wasteful number, since it uses less digits than its factorization.

78316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2808 (or 2806 counting only the distinct ones).

The product of its digits is 1008, while the sum is 25.

The square root of 78316 is about 279.8499597999. The cubic root of 78316 is about 42.7842082248.

The spelling of 78316 in words is "seventy-eight thousand, three hundred sixteen".