78068684 has 6 divisors (see below), whose sum is σ = 136620204. Its totient is φ = 39034340.

The previous prime is 78068681. The next prime is 78068713. The reversal of 78068684 is 48686087.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (78068681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9758582 + ... + 9758589.

It is an arithmetic number, because the mean of its divisors is an integer number (22770034).

Almost surely, 2^78068684 is an apocalyptic number.

It is an amenable number.

78068684 is a deficient number, since it is larger than the sum of its proper divisors (58551520).

78068684 is a wasteful number, since it uses less digits than its factorization.

78068684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19517175 (or 19517173 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 47.

The square root of 78068684 is about 8835.6484764843. The cubic root of 78068684 is about 427.3912430387.

The spelling of 78068684 in words is "seventy-eight million, sixty-eight thousand, six hundred eighty-four".