78841216 has 32 divisors (see below), whose sum is σ = 157467600. Its totient is φ = 39320064.

The previous prime is 78841207. The next prime is 78841229. The reversal of 78841216 is 61214887.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94690 + ... + 95518.

Almost surely, 2^78841216 is an apocalyptic number.

It is an amenable number.

78841216 is a deficient number, since it is larger than the sum of its proper divisors (78626384).

78841216 is an equidigital number, since it uses as much as digits as its factorization.

78841216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586 (or 1574 counting only the distinct ones).

The product of its digits is 21504, while the sum is 37.

The square root of 78841216 is about 8879.2576266262. The cubic root of 78841216 is about 428.7963744403.

The spelling of 78841216 in words is "seventy-eight million, eight hundred forty-one thousand, two hundred sixteen".