475827861 has 16 divisors (see below), whose sum is σ = 646067520. Its totient is φ = 311418240.

The previous prime is 475827857. The next prime is 475827889. The reversal of 475827861 is 168728574.

It is not a de Polignac number, because 475827861 - 2² = 475827857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 475827861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475827851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179401 + ... + 182033.

It is an arithmetic number, because the mean of its divisors is an integer number (40379220).

Almost surely, 2^475827861 is an apocalyptic number.

It is an amenable number.

475827861 is a deficient number, since it is larger than the sum of its proper divisors (170239659).

475827861 is a wasteful number, since it uses less digits than its factorization.

475827861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3716.

The product of its digits is 752640, while the sum is 48.

The square root of 475827861 is about 21813.4788834794. The cubic root of 475827861 is about 780.6983997894.

The spelling of 475827861 in words is "four hundred seventy-five million, eight hundred twenty-seven thousand, eight hundred sixty-one".