78715206 has 32 divisors (see below), whose sum is σ = 179654880. Its totient is φ = 25528608.

The previous prime is 78715199. The next prime is 78715207. The reversal of 78715206 is 60251787.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78715207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17701 + ... + 21696.

It is an arithmetic number, because the mean of its divisors is an integer number (5614215).

Almost surely, 2^78715206 is an apocalyptic number.

78715206 is an abundant number, since it is smaller than the sum of its proper divisors (100939674).

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

78715206 is a wasteful number, since it uses less digits than its factorization.

78715206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39445 (or 39439 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 78715206 is about 8872.1590382499. The cubic root of 78715206 is about 428.5678076837.

The spelling of 78715206 in words is "seventy-eight million, seven hundred fifteen thousand, two hundred six".