473888809 has 4 divisors (see below), whose sum is σ = 481657540. Its totient is φ = 466120080.

The previous prime is 473888761. The next prime is 473888837. The reversal of 473888809 is 908888374.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 117245584 + 356643225 = 10828^2 + 18885^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-473888809 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 473888809.

It is not an unprimeable number, because it can be changed into a prime (473888879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3884274 + ... + 3884395.

It is an arithmetic number, because the mean of its divisors is an integer number (120414385).

Almost surely, 2^473888809 is an apocalyptic number.

It is an amenable number.

473888809 is a deficient number, since it is larger than the sum of its proper divisors (7768731).

473888809 is an equidigital number, since it uses as much as digits as its factorization.

473888809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7768730.

The product of its (nonzero) digits is 3096576, while the sum is 55.

The square root of 473888809 is about 21768.9873214167. The cubic root of 473888809 is about 779.6364780963.

The spelling of 473888809 in words is "four hundred seventy-three million, eight hundred eighty-eight thousand, eight hundred nine".