78805208 has 16 divisors (see below), whose sum is σ = 148703280. Its totient is φ = 39151008.

The previous prime is 78805201. The next prime is 78805211. The reversal of 78805208 is 80250887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78805201) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 30116 + ... + 32627.

It is an arithmetic number, because the mean of its divisors is an integer number (9293955).

Almost surely, 2^78805208 is an apocalyptic number.

It is an amenable number.

78805208 is a deficient number, since it is larger than the sum of its proper divisors (69898072).

78805208 is a wasteful number, since it uses less digits than its factorization.

78805208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62906 (or 62902 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 38.

The square root of 78805208 is about 8877.2297480689. The cubic root of 78805208 is about 428.7310851926.

The spelling of 78805208 in words is "seventy-eight million, eight hundred five thousand, two hundred eight".