478641571 has 4 divisors (see below), whose sum is σ = 486754200. Its totient is φ = 470528944.

The previous prime is 478641547. The next prime is 478641587. The reversal of 478641571 is 175146874.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 478641571 - 2¹¹ = 478639523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478641871) 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 3 ways as a sum of consecutive naturals, for example, 4056226 + ... + 4056343.

It is an arithmetic number, because the mean of its divisors is an integer number (121688550).

Almost surely, 2^478641571 is an apocalyptic number.

478641571 is a deficient number, since it is larger than the sum of its proper divisors (8112629).

478641571 is an equidigital number, since it uses as much as digits as its factorization.

478641571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8112628.

The product of its digits is 188160, while the sum is 43.

The square root of 478641571 is about 21877.8785763154. The cubic root of 478641571 is about 782.2342095592.

The spelling of 478641571 in words is "four hundred seventy-eight million, six hundred forty-one thousand, five hundred seventy-one".