475312393 has 2 divisors, whose sum is σ = 475312394. Its totient is φ = 475312392.

The previous prime is 475312381. The next prime is 475312433. The reversal of 475312393 is 393213574.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 449991369 + 25321024 = 21213^2 + 5032^2 .

It is a cyclic number.

It is not a de Polignac number, because 475312393 - 2⁵ = 475312361 is a prime.

It is not a weakly prime, because it can be changed into another prime (475312373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237656196 + 237656197.

It is an arithmetic number, because the mean of its divisors is an integer number (237656197).

Almost surely, 2^475312393 is an apocalyptic number.

It is an amenable number.

475312393 is a deficient number, since it is larger than the sum of its proper divisors (1).

475312393 is an equidigital number, since it uses as much as digits as its factorization.

475312393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 37.

The square root of 475312393 is about 21801.6603266815. The cubic root of 475312393 is about 780.4163857251.

The spelling of 475312393 in words is "four hundred seventy-five million, three hundred twelve thousand, three hundred ninety-three".