479091871 has 2 divisors, whose sum is σ = 479091872. Its totient is φ = 479091870.

The previous prime is 479091839. The next prime is 479091901. The reversal of 479091871 is 178190974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 479091871 - 2⁵ = 479091839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (479092871) 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, 239545935 + 239545936.

It is an arithmetic number, because the mean of its divisors is an integer number (239545936).

Almost surely, 2^479091871 is an apocalyptic number.

479091871 is a deficient number, since it is larger than the sum of its proper divisors (1).

479091871 is an equidigital number, since it uses as much as digits as its factorization.

479091871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 46.

The square root of 479091871 is about 21888.1673741773. The cubic root of 479091871 is about 782.4794380576.

The spelling of 479091871 in words is "four hundred seventy-nine million, ninety-one thousand, eight hundred seventy-one".