78758228 has 12 divisors (see below), whose sum is σ = 142273152. Its totient is φ = 38108760.

The previous prime is 78758227. The next prime is 78758261. The reversal of 78758228 is 82285787.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78758221) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 317450 + ... + 317697.

It is an arithmetic number, because the mean of its divisors is an integer number (11856096).

Almost surely, 2^78758228 is an apocalyptic number.

It is an amenable number.

78758228 is a deficient number, since it is larger than the sum of its proper divisors (63514924).

78758228 is a wasteful number, since it uses less digits than its factorization.

78758228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635182 (or 635180 counting only the distinct ones).

The product of its digits is 501760, while the sum is 47.

The square root of 78758228 is about 8874.5832578212. The cubic root of 78758228 is about 428.6458717457.

The spelling of 78758228 in words is "seventy-eight million, seven hundred fifty-eight thousand, two hundred twenty-eight".