475993123 has 4 divisors (see below), whose sum is σ = 488857840. Its totient is φ = 463128408.

The previous prime is 475993121. The next prime is 475993151. The reversal of 475993123 is 321399574.

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

It is not a de Polignac number, because 475993123 - 2¹ = 475993121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 475993123.

It is not an unprimeable number, because it can be changed into a prime (475993121) 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, 6432303 + ... + 6432376.

It is an arithmetic number, because the mean of its divisors is an integer number (122214460).

Almost surely, 2^475993123 is an apocalyptic number.

475993123 is a deficient number, since it is larger than the sum of its proper divisors (12864717).

475993123 is a wasteful number, since it uses less digits than its factorization.

475993123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12864716.

The product of its digits is 204120, while the sum is 43.

The square root of 475993123 is about 21817.2666253131. The cubic root of 475993123 is about 780.7887719986.

The spelling of 475993123 in words is "four hundred seventy-five million, nine hundred ninety-three thousand, one hundred twenty-three".