478471933 has 2 divisors, whose sum is σ = 478471934. Its totient is φ = 478471932.

The previous prime is 478471853. The next prime is 478471937. The reversal of 478471933 is 339174874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 401681764 + 76790169 = 20042^2 + 8763^2 .

It is a cyclic number.

It is not a de Polignac number, because 478471933 - 2¹⁷ = 478340861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478471937) 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 as a sum of consecutive naturals, namely, 239235966 + 239235967.

It is an arithmetic number, because the mean of its divisors is an integer number (239235967).

Almost surely, 2^478471933 is an apocalyptic number.

It is an amenable number.

478471933 is a deficient number, since it is larger than the sum of its proper divisors (1).

478471933 is an equidigital number, since it uses as much as digits as its factorization.

478471933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 46.

The square root of 478471933 is about 21874.0013029167. The cubic root of 478471933 is about 782.1417866589.

The spelling of 478471933 in words is "four hundred seventy-eight million, four hundred seventy-one thousand, nine hundred thirty-three".