78910216 has 64 divisors (see below), whose sum is σ = 188023680. Its totient is φ = 30151680.

The previous prime is 78910213. The next prime is 78910259. The reversal of 78910216 is 61201987.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (78910213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31440 + ... + 33856.

It is an arithmetic number, because the mean of its divisors is an integer number (2937870).

Almost surely, 2^78910216 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 78910216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94011840).

78910216 is an abundant number, since it is smaller than the sum of its proper divisors (109113464).

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

78910216 is a wasteful number, since it uses less digits than its factorization.

78910216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494 (or 2490 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 78910216 is about 8883.1422368439. The cubic root of 78910216 is about 428.9214288397.

The spelling of 78910216 in words is "seventy-eight million, nine hundred ten thousand, two hundred sixteen".