78825612 has 12 divisors (see below), whose sum is σ = 183926456. Its totient is φ = 26275200.

The previous prime is 78825601. The next prime is 78825629. The reversal of 78825612 is 21652887.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3284389 + ... + 3284412.

Almost surely, 2^78825612 is an apocalyptic number.

It is an amenable number.

78825612 is an abundant number, since it is smaller than the sum of its proper divisors (105100844).

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

78825612 is a wasteful number, since it uses less digits than its factorization.

78825612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6568808 (or 6568806 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 78825612 is about 8878.3789060842. The cubic root of 78825612 is about 428.7680839072.

The spelling of 78825612 in words is "seventy-eight million, eight hundred twenty-five thousand, six hundred twelve".