78875312 has 10 divisors (see below), whose sum is σ = 152820948. Its totient is φ = 39437648.

The previous prime is 78875311. The next prime is 78875339. The reversal of 78875312 is 21357887.

It is a self number, because there is not a number n which added to its sum of digits gives 78875312.

It is not an unprimeable number, because it can be changed into a prime (78875311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2464838 + ... + 2464869.

Almost surely, 2^78875312 is an apocalyptic number.

It is an amenable number.

78875312 is a deficient number, since it is larger than the sum of its proper divisors (73945636).

78875312 is a wasteful number, since it uses less digits than its factorization.

78875312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4929715 (or 4929709 counting only the distinct ones).

The product of its digits is 94080, while the sum is 41.

The square root of 78875312 is about 8881.1773994218. The cubic root of 78875312 is about 428.8581785526.

The spelling of 78875312 in words is "seventy-eight million, eight hundred seventy-five thousand, three hundred twelve".