475278986 has 64 divisors (see below), whose sum is σ = 908775168. Its totient is φ = 181398528.

The previous prime is 475278959. The next prime is 475278989. The reversal of 475278986 is 689872574.

It is a super-2 number, since 2×475278986² = 451780229066376392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (475278989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1097426 + ... + 1097858.

It is an arithmetic number, because the mean of its divisors is an integer number (14199612).

Almost surely, 2^475278986 is an apocalyptic number.

475278986 is a deficient number, since it is larger than the sum of its proper divisors (433496182).

475278986 is a wasteful number, since it uses less digits than its factorization.

475278986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655.

The product of its digits is 6773760, while the sum is 56.

The square root of 475278986 is about 21800.8941559744. The cubic root of 475278986 is about 780.3981016230.

It can be divided in two parts, 4752 and 78986, that added together give a palindrome (83738).

The spelling of 475278986 in words is "four hundred seventy-five million, two hundred seventy-eight thousand, nine hundred eighty-six".