475944493 has 4 divisors (see below), whose sum is σ = 481678848. Its totient is φ = 470210140.

The previous prime is 475944487. The next prime is 475944517. The reversal of 475944493 is 394449574.

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 not a de Polignac number, because 475944493 - 2⁹ = 475943981 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 (475944463) 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, 2867053 + ... + 2867218.

It is an arithmetic number, because the mean of its divisors is an integer number (120419712).

Almost surely, 2^475944493 is an apocalyptic number.

It is an amenable number.

475944493 is a deficient number, since it is larger than the sum of its proper divisors (5734355).

475944493 is an equidigital number, since it uses as much as digits as its factorization.

475944493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5734354.

The product of its digits is 2177280, while the sum is 49.

The square root of 475944493 is about 21816.1521125977. The cubic root of 475944493 is about 780.7621812425.

The spelling of 475944493 in words is "four hundred seventy-five million, nine hundred forty-four thousand, four hundred ninety-three".