475478827 has 4 divisors (see below), whose sum is σ = 475959616. Its totient is φ = 474998040.

The previous prime is 475478813. The next prime is 475478849. The reversal of 475478827 is 728874574.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-475478827 is a prime.

It is a super-2 number, since 2×475478827² = 452160229850591858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (475478807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238908 + ... + 240889.

It is an arithmetic number, because the mean of its divisors is an integer number (118989904).

Almost surely, 2^475478827 is an apocalyptic number.

475478827 is a deficient number, since it is larger than the sum of its proper divisors (480789).

475478827 is an equidigital number, since it uses as much as digits as its factorization.

475478827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480788.

The product of its digits is 3512320, while the sum is 52.

The square root of 475478827 is about 21805.4769954707. The cubic root of 475478827 is about 780.5074645364.

The spelling of 475478827 in words is "four hundred seventy-five million, four hundred seventy-eight thousand, eight hundred twenty-seven".