78766930 has 16 divisors (see below), whose sum is σ = 154669824. Its totient is φ = 28642480.

The previous prime is 78766901. The next prime is 78766931. The reversal of 78766930 is 3966787.

It is not an unprimeable number, because it can be changed into a prime (78766931) by changing a digit.

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, 357922 + ... + 358141.

It is an arithmetic number, because the mean of its divisors is an integer number (9666864).

Almost surely, 2^78766930 is an apocalyptic number.

78766930 is a deficient number, since it is larger than the sum of its proper divisors (75902894).

78766930 is a wasteful number, since it uses less digits than its factorization.

78766930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716081.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 78766930 is about 8875.0735208222. The cubic root of 78766930 is about 428.6616581979.

The spelling of 78766930 in words is "seventy-eight million, seven hundred sixty-six thousand, nine hundred thirty".