78474227 has 8 divisors (see below), whose sum is σ = 89482176. Its totient is φ = 68176512.

The previous prime is 78474217. The next prime is 78474233. The reversal of 78474227 is 72247487.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78474227 - 2⁴ = 78474211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78474217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177323 + ... + 177764.

It is an arithmetic number, because the mean of its divisors is an integer number (11185272).

Almost surely, 2^78474227 is an apocalyptic number.

78474227 is a deficient number, since it is larger than the sum of its proper divisors (11007949).

78474227 is a wasteful number, since it uses less digits than its factorization.

78474227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355117.

The product of its digits is 175616, while the sum is 41.

The square root of 78474227 is about 8858.5679994004. The cubic root of 78474227 is about 428.1300209829.

The spelling of 78474227 in words is "seventy-eight million, four hundred seventy-four thousand, two hundred twenty-seven".