78677804 has 24 divisors (see below), whose sum is σ = 139304256. Its totient is φ = 38880000.

The previous prime is 78677791. The next prime is 78677843. The reversal of 78677804 is 40877687.

78677804 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

78677804 is strictly pandigital in base 9.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 196004 + ... + 196404.

It is an arithmetic number, because the mean of its divisors is an integer number (5804344).

Almost surely, 2^78677804 is an apocalyptic number.

It is an amenable number.

78677804 is a deficient number, since it is larger than the sum of its proper divisors (60626452).

78677804 is a wasteful number, since it uses less digits than its factorization.

78677804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 855 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 47.

The square root of 78677804 is about 8870.0509581400. The cubic root of 78677804 is about 428.4999180792.

The spelling of 78677804 in words is "seventy-eight million, six hundred seventy-seven thousand, eight hundred four".