478868473 has 2 divisors, whose sum is σ = 478868474. Its totient is φ = 478868472.

The previous prime is 478868447. The next prime is 478868491. The reversal of 478868473 is 374868874.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 369100944 + 109767529 = 19212^2 + 10477^2 .

It is a cyclic number.

It is not a de Polignac number, because 478868473 - 2¹⁷ = 478737401 is a prime.

It is not a weakly prime, because it can be changed into another prime (478868413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239434236 + 239434237.

It is an arithmetic number, because the mean of its divisors is an integer number (239434237).

Almost surely, 2^478868473 is an apocalyptic number.

It is an amenable number.

478868473 is a deficient number, since it is larger than the sum of its proper divisors (1).

478868473 is an equidigital number, since it uses as much as digits as its factorization.

478868473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7225344, while the sum is 55.

The square root of 478868473 is about 21883.0636109298. The cubic root of 478868473 is about 782.3577971440.

The spelling of 478868473 in words is "four hundred seventy-eight million, eight hundred sixty-eight thousand, four hundred seventy-three".