78938804 has 36 divisors (see below), whose sum is σ = 161221536. Its totient is φ = 33720624.

The previous prime is 78938791. The next prime is 78938831. The reversal of 78938804 is 40883987.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 95039 + ... + 95865.

It is an arithmetic number, because the mean of its divisors is an integer number (4478376).

Almost surely, 2^78938804 is an apocalyptic number.

It is an amenable number.

78938804 is an abundant number, since it is smaller than the sum of its proper divisors (82282732).

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

78938804 is a wasteful number, since it uses less digits than its factorization.

78938804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332 (or 1323 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 78938804 is about 8884.7512064210. The cubic root of 78938804 is about 428.9732198749.

It can be divided in two parts, 789 and 38804, that added together give a palindrome (39593).

The spelling of 78938804 in words is "seventy-eight million, nine hundred thirty-eight thousand, eight hundred four".