78855206 has 16 divisors (see below), whose sum is σ = 127406400. Its totient is φ = 36483048.

The previous prime is 78855191. The next prime is 78855209. The reversal of 78855206 is 60255887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78855209) 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 7 ways as a sum of consecutive naturals, for example, 22496 + ... + 25763.

It is an arithmetic number, because the mean of its divisors is an integer number (7962900).

Almost surely, 2^78855206 is an apocalyptic number.

78855206 is a deficient number, since it is larger than the sum of its proper divisors (48551194).

78855206 is a wasteful number, since it uses less digits than its factorization.

78855206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48323.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 78855206 is about 8880.0453827669. The cubic root of 78855206 is about 428.8217355682.

The spelling of 78855206 in words is "seventy-eight million, eight hundred fifty-five thousand, two hundred six".