478837871 has 2 divisors, whose sum is σ = 478837872. Its totient is φ = 478837870.

The previous prime is 478837859. The next prime is 478837901. The reversal of 478837871 is 178738874.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 478837871 - 2¹⁴ = 478821487 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478837171) 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, 239418935 + 239418936.

It is an arithmetic number, because the mean of its divisors is an integer number (239418936).

Almost surely, 2^478837871 is an apocalyptic number.

478837871 is a deficient number, since it is larger than the sum of its proper divisors (1).

478837871 is an equidigital number, since it uses as much as digits as its factorization.

478837871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2107392, while the sum is 53.

The square root of 478837871 is about 21882.3643832197. The cubic root of 478837871 is about 782.3411313129.

The spelling of 478837871 in words is "four hundred seventy-eight million, eight hundred thirty-seven thousand, eight hundred seventy-one".