475890621 has 8 divisors (see below), whose sum is σ = 640342560. Its totient is φ = 314349552.

The previous prime is 475890607. The next prime is 475890629. The reversal of 475890621 is 126098574.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 475890621 - 2¹⁵ = 475857853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475890629) 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 7 ways as a sum of consecutive naturals, for example, 727335 + ... + 727988.

It is an arithmetic number, because the mean of its divisors is an integer number (80042820).

Almost surely, 2^475890621 is an apocalyptic number.

It is an amenable number.

475890621 is a deficient number, since it is larger than the sum of its proper divisors (164451939).

475890621 is a wasteful number, since it uses less digits than its factorization.

475890621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455435.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 475890621 is about 21814.9173961306. The cubic root of 475890621 is about 780.7327220598.

The spelling of 475890621 in words is "four hundred seventy-five million, eight hundred ninety thousand, six hundred twenty-one".