78464868 has 24 divisors (see below), whose sum is σ = 191045568. Its totient is φ = 25017696.

The previous prime is 78464833. The next prime is 78464899. The reversal of 78464868 is 86846487.

It is a self number, because there is not a number n which added to its sum of digits gives 78464868.

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 7 ways as a sum of consecutive naturals, for example, 141871 + ... + 142422.

It is an arithmetic number, because the mean of its divisors is an integer number (7960232).

Almost surely, 2^78464868 is an apocalyptic number.

It is an amenable number.

78464868 is an abundant number, since it is smaller than the sum of its proper divisors (112580700).

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

78464868 is a wasteful number, since it uses less digits than its factorization.

78464868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284323 (or 284321 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 51.

The square root of 78464868 is about 8858.0397380007. The cubic root of 78464868 is about 428.1130004131.

The spelling of 78464868 in words is "seventy-eight million, four hundred sixty-four thousand, eight hundred sixty-eight".