78825316 has 12 divisors (see below), whose sum is σ = 138518380. Its totient is φ = 39248640.

The previous prime is 78825289. The next prime is 78825377. The reversal of 78825316 is 61352887.

It can be written as a sum of positive squares in 2 ways, for example, as 33988900 + 44836416 = 5830^2 + 6696^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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, 39921 + ... + 41848.

Almost surely, 2^78825316 is an apocalyptic number.

It is an amenable number.

78825316 is a deficient number, since it is larger than the sum of its proper divisors (59693064).

78825316 is a wasteful number, since it uses less digits than its factorization.

78825316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82014 (or 82012 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 78825316 is about 8878.3622363587. The cubic root of 78825316 is about 428.7675472140.

The spelling of 78825316 in words is "seventy-eight million, eight hundred twenty-five thousand, three hundred sixteen".