475168687 has 8 divisors (see below), whose sum is σ = 544159872. Its totient is φ = 406455000.

The previous prime is 475168679. The next prime is 475168693. The reversal of 475168687 is 786861574.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 475168687 - 2³ = 475168679 is a prime.

It is a super-2 number, since 2×475168687² = 451570562210607938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475168627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65689 + ... + 72562.

It is an arithmetic number, because the mean of its divisors is an integer number (68019984).

Almost surely, 2^475168687 is an apocalyptic number.

475168687 is a deficient number, since it is larger than the sum of its proper divisors (68991185).

475168687 is a wasteful number, since it uses less digits than its factorization.

475168687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138749.

The product of its digits is 2257920, while the sum is 52.

The square root of 475168687 is about 21798.3643193704. The cubic root of 475168687 is about 780.3377274061.

The spelling of 475168687 in words is "four hundred seventy-five million, one hundred sixty-eight thousand, six hundred eighty-seven".