475287771 has 16 divisors (see below), whose sum is σ = 724945664. Its totient is φ = 271331424.

The previous prime is 475287767. The next prime is 475287803. The reversal of 475287771 is 177782574.

It is not a de Polignac number, because 475287771 - 2² = 475287767 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 475287771.

It is not an unprimeable number, because it can be changed into a prime (475287731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12600 + ... + 33306.

It is an arithmetic number, because the mean of its divisors is an integer number (45309104).

Almost surely, 2^475287771 is an apocalyptic number.

475287771 is a deficient number, since it is larger than the sum of its proper divisors (249657893).

475287771 is a wasteful number, since it uses less digits than its factorization.

475287771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21810.

The product of its digits is 768320, while the sum is 48.

The square root of 475287771 is about 21801.0956376050. The cubic root of 475287771 is about 780.4029098551.

The spelling of 475287771 in words is "four hundred seventy-five million, two hundred eighty-seven thousand, seven hundred seventy-one".