478822147 has 2 divisors, whose sum is σ = 478822148. Its totient is φ = 478822146.

The previous prime is 478822049. The next prime is 478822171. The reversal of 478822147 is 741228874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 478822147 - 2²³ = 470433539 is a prime.

It is not a weakly prime, because it can be changed into another prime (478822247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239411073 + 239411074.

It is an arithmetic number, because the mean of its divisors is an integer number (239411074).

Almost surely, 2^478822147 is an apocalyptic number.

478822147 is a deficient number, since it is larger than the sum of its proper divisors (1).

478822147 is an equidigital number, since it uses as much as digits as its factorization.

478822147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 200704, while the sum is 43.

The square root of 478822147 is about 21882.0050955117. The cubic root of 478822147 is about 782.3325677556.

The spelling of 478822147 in words is "four hundred seventy-eight million, eight hundred twenty-two thousand, one hundred forty-seven".