479128047 has 16 divisors (see below), whose sum is σ = 646611840. Its totient is φ = 315555552.

The previous prime is 479128043. The next prime is 479128049. The reversal of 479128047 is 740821974.

It is a happy number.

It is not a de Polignac number, because 479128047 - 2² = 479128043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (479128043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81468 + ... + 87150.

It is an arithmetic number, because the mean of its divisors is an integer number (40413240).

Almost surely, 2^479128047 is an apocalyptic number.

479128047 is a deficient number, since it is larger than the sum of its proper divisors (167483793).

479128047 is a wasteful number, since it uses less digits than its factorization.

479128047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6022.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 479128047 is about 21888.9937411476. The cubic root of 479128047 is about 782.4991324457.

The spelling of 479128047 in words is "four hundred seventy-nine million, one hundred twenty-eight thousand, forty-seven".