475947382 has 4 divisors (see below), whose sum is σ = 713921076. Its totient is φ = 237973690.

The previous prime is 475947379. The next prime is 475947389. The reversal of 475947382 is 283749574.

It is a happy number.

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

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475947389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118986844 + ... + 118986847.

It is an arithmetic number, because the mean of its divisors is an integer number (178480269).

Almost surely, 2^475947382 is an apocalyptic number.

475947382 is a deficient number, since it is larger than the sum of its proper divisors (237973694).

475947382 is a wasteful number, since it uses less digits than its factorization.

475947382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237973693.

The product of its digits is 1693440, while the sum is 49.

The square root of 475947382 is about 21816.2183249068. The cubic root of 475947382 is about 780.7637609907.

The spelling of 475947382 in words is "four hundred seventy-five million, nine hundred forty-seven thousand, three hundred eighty-two".