471745687 has 6 divisors (see below), whose sum is σ = 548765448. Its totient is φ = 404353404.

The previous prime is 471745613. The next prime is 471745711. The reversal of 471745687 is 786547174.

It is not a de Polignac number, because 471745687 - 2²⁷ = 337527959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 9627463 = 471745687 / (4 + 7 + 1 + 7 + 4 + 5 + 6 + 8 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 471745687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (471745487) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4813683 + ... + 4813780.

It is an arithmetic number, because the mean of its divisors is an integer number (91460908).

Almost surely, 2^471745687 is an apocalyptic number.

471745687 is a deficient number, since it is larger than the sum of its proper divisors (77019761).

471745687 is an equidigital number, since it uses as much as digits as its factorization.

471745687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9627477 (or 9627470 counting only the distinct ones).

The product of its digits is 1317120, while the sum is 49.

The square root of 471745687 is about 21719.7073414906. The cubic root of 471745687 is about 778.4594219513.

The spelling of 471745687 in words is "four hundred seventy-one million, seven hundred forty-five thousand, six hundred eighty-seven".