479918889 has 6 divisors (see below), whose sum is σ = 693216186. Its totient is φ = 319945920.

The previous prime is 479918821. The next prime is 479918909. The reversal of 479918889 is 988819974.

479918889 is a `hidden beast` number, since 479 + 9 + 1 + 88 + 89 = 666.

It can be written as a sum of positive squares in only one way, i.e., 341621289 + 138297600 = 18483^2 + 11760^2 .

It is not a de Polignac number, because 479918889 - 2⁹ = 479918377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (479918689) 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 in 5 ways as a sum of consecutive naturals, for example, 26662152 + ... + 26662169.

It is an arithmetic number, because the mean of its divisors is an integer number (115536031).

Almost surely, 2^479918889 is an apocalyptic number.

It is an amenable number.

479918889 is a deficient number, since it is larger than the sum of its proper divisors (213297297).

479918889 is a wasteful number, since it uses less digits than its factorization.

479918889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53324327 (or 53324324 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 63.

The square root of 479918889 is about 21907.0511251515. The cubic root of 479918889 is about 782.9294231342.

The spelling of 479918889 in words is "four hundred seventy-nine million, nine hundred eighteen thousand, eight hundred eighty-nine".