473221565 has 8 divisors (see below), whose sum is σ = 587447640. Its totient is φ = 365522752.

The previous prime is 473221523. The next prime is 473221583. The reversal of 473221565 is 565122374.

It can be written as a sum of positive squares in 4 ways, for example, as 65060356 + 408161209 = 8066^2 + 20203^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 473221565 - 2⁶ = 473221501 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1631654 + ... + 1631943.

It is an arithmetic number, because the mean of its divisors is an integer number (73430955).

Almost surely, 2^473221565 is an apocalyptic number.

It is an amenable number.

473221565 is a deficient number, since it is larger than the sum of its proper divisors (114226075).

473221565 is a wasteful number, since it uses less digits than its factorization.

473221565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3263631.

The product of its digits is 50400, while the sum is 35.

The square root of 473221565 is about 21753.6563593342. The cubic root of 473221565 is about 779.2703921443.

The spelling of 473221565 in words is "four hundred seventy-three million, two hundred twenty-one thousand, five hundred sixty-five".