475890289 has 4 divisors (see below), whose sum is σ = 543874624. Its totient is φ = 407905956.

The previous prime is 475890281. The next prime is 475890293. The reversal of 475890289 is 982098574.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 475890289 - 2³ = 475890281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (475890281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33992157 + ... + 33992170.

It is an arithmetic number, because the mean of its divisors is an integer number (135968656).

Almost surely, 2^475890289 is an apocalyptic number.

It is an amenable number.

475890289 is a deficient number, since it is larger than the sum of its proper divisors (67984335).

475890289 is an equidigital number, since it uses as much as digits as its factorization.

475890289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67984334.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The square root of 475890289 is about 21814.9097866574. The cubic root of 475890289 is about 780.7325405032.

The spelling of 475890289 in words is "four hundred seventy-five million, eight hundred ninety thousand, two hundred eighty-nine".