475831393 has 4 divisors (see below), whose sum is σ = 478750768. Its totient is φ = 472912020.

The previous prime is 475831381. The next prime is 475831397. The reversal of 475831393 is 393138574.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-475831393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (475831397) 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, 1459443 + ... + 1459768.

It is an arithmetic number, because the mean of its divisors is an integer number (119687692).

Almost surely, 2^475831393 is an apocalyptic number.

It is an amenable number.

475831393 is a deficient number, since it is larger than the sum of its proper divisors (2919375).

475831393 is a wasteful number, since it uses less digits than its factorization.

475831393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919374.

The product of its digits is 272160, while the sum is 43.

The square root of 475831393 is about 21813.5598424466. The cubic root of 475831393 is about 780.7003314543.

The spelling of 475831393 in words is "four hundred seventy-five million, eight hundred thirty-one thousand, three hundred ninety-three".