478446571 has 2 divisors, whose sum is σ = 478446572. Its totient is φ = 478446570.

The previous prime is 478446547. The next prime is 478446587. The reversal of 478446571 is 175644874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 478446571 - 2⁵ = 478446539 is a prime.

It is a super-2 number, since 2×478446571² = 457822242603316082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (478446071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239223285 + 239223286.

It is an arithmetic number, because the mean of its divisors is an integer number (239223286).

Almost surely, 2^478446571 is an apocalyptic number.

478446571 is a deficient number, since it is larger than the sum of its proper divisors (1).

478446571 is an equidigital number, since it uses as much as digits as its factorization.

478446571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 752640, while the sum is 46.

The square root of 478446571 is about 21873.4215659096. The cubic root of 478446571 is about 782.1279669486.

The spelling of 478446571 in words is "four hundred seventy-eight million, four hundred forty-six thousand, five hundred seventy-one".