475739091 has 12 divisors (see below), whose sum is σ = 687457368. Its totient is φ = 317030784.

The previous prime is 475739083. The next prime is 475739141. The reversal of 475739091 is 190937574.

475739091 is a `hidden beast` number, since 475 + 7 + 3 + 90 + 91 = 666.

It is not a de Polignac number, because 475739091 - 2³ = 475739083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (475739021) 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 11 ways as a sum of consecutive naturals, for example, 16291 + ... + 34883.

It is an arithmetic number, because the mean of its divisors is an integer number (57288114).

Almost surely, 2^475739091 is an apocalyptic number.

475739091 is a deficient number, since it is larger than the sum of its proper divisors (211718277).

475739091 is a wasteful number, since it uses less digits than its factorization.

475739091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21442 (or 21439 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 475739091 is about 21811.4440374772. Note that the first 3 decimals coincide. The cubic root of 475739091 is about 780.6498479827.

The spelling of 475739091 in words is "four hundred seventy-five million, seven hundred thirty-nine thousand, ninety-one".