475490933 has 4 divisors (see below), whose sum is σ = 475952268. Its totient is φ = 475029600.

The previous prime is 475490881. The next prime is 475491001. The reversal of 475490933 is 339094574.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 326235844 + 149255089 = 18062^2 + 12217^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-475490933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475490033) 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 3 ways as a sum of consecutive naturals, for example, 229118 + ... + 231183.

It is an arithmetic number, because the mean of its divisors is an integer number (118988067).

Almost surely, 2^475490933 is an apocalyptic number.

It is an amenable number.

475490933 is a deficient number, since it is larger than the sum of its proper divisors (461335).

475490933 is a wasteful number, since it uses less digits than its factorization.

475490933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461334.

The product of its (nonzero) digits is 408240, while the sum is 44.

The square root of 475490933 is about 21805.7545845128. The cubic root of 475490933 is about 780.5140885560.

The spelling of 475490933 in words is "four hundred seventy-five million, four hundred ninety thousand, nine hundred thirty-three".