475093391 has 4 divisors (see below), whose sum is σ = 475143792. Its totient is φ = 475042992.

The previous prime is 475093349. The next prime is 475093393. The reversal of 475093391 is 193390574.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 475093391 - 2⁶ = 475093327 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 (475093393) 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, 6371 + ... + 31476.

It is an arithmetic number, because the mean of its divisors is an integer number (118785948).

Almost surely, 2^475093391 is an apocalyptic number.

475093391 is a deficient number, since it is larger than the sum of its proper divisors (50401).

475093391 is a wasteful number, since it uses less digits than its factorization.

475093391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50400.

The product of its (nonzero) digits is 102060, while the sum is 41.

The square root of 475093391 is about 21796.6371488815. The cubic root of 475093391 is about 780.2965073685.

The spelling of 475093391 in words is "four hundred seventy-five million, ninety-three thousand, three hundred ninety-one".