475989493 has 8 divisors (see below), whose sum is σ = 546723200. Its totient is φ = 405939600.

The previous prime is 475989487. The next prime is 475989509. The reversal of 475989493 is 394989574.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-475989493 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 (475989433) 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, 169458 + ... + 172243.

It is an arithmetic number, because the mean of its divisors is an integer number (68340400).

Almost surely, 2^475989493 is an apocalyptic number.

It is an amenable number.

475989493 is a deficient number, since it is larger than the sum of its proper divisors (70733707).

475989493 is a wasteful number, since it uses less digits than its factorization.

475989493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341907.

The product of its digits is 9797760, while the sum is 58.

The square root of 475989493 is about 21817.1834341649. The cubic root of 475989493 is about 780.7867871867.

The spelling of 475989493 in words is "four hundred seventy-five million, nine hundred eighty-nine thousand, four hundred ninety-three".