78912268 has 12 divisors (see below), whose sum is σ = 141829072. Its totient is φ = 38389680.

The previous prime is 78912227. The next prime is 78912269. The reversal of 78912268 is 86221987.

It is not an unprimeable number, because it can be changed into a prime (78912269) 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 3 ways as a sum of consecutive naturals, for example, 266448 + ... + 266743.

Almost surely, 2^78912268 is an apocalyptic number.

It is an amenable number.

78912268 is a deficient number, since it is larger than the sum of its proper divisors (62916804).

78912268 is a wasteful number, since it uses less digits than its factorization.

78912268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533232 (or 533230 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The square root of 78912268 is about 8883.2577357634. The cubic root of 78912268 is about 428.9251467324.

The spelling of 78912268 in words is "seventy-eight million, nine hundred twelve thousand, two hundred sixty-eight".