475345787 has 4 divisors (see below), whose sum is σ = 543252336. Its totient is φ = 407439240.

The previous prime is 475345769. The next prime is 475345811. The reversal of 475345787 is 787543574.

It is a happy number.

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-475345787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (475345727) 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, 33953264 + ... + 33953277.

It is an arithmetic number, because the mean of its divisors is an integer number (135813084).

Almost surely, 2^475345787 is an apocalyptic number.

475345787 is a deficient number, since it is larger than the sum of its proper divisors (67906549).

475345787 is an equidigital number, since it uses as much as digits as its factorization.

475345787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67906548.

The product of its digits is 3292800, while the sum is 50.

The square root of 475345787 is about 21802.4261723323. The cubic root of 475345787 is about 780.4346618560.

The spelling of 475345787 in words is "four hundred seventy-five million, three hundred forty-five thousand, seven hundred eighty-seven".