473890221 has 18 divisors (see below), whose sum is σ = 796265262. Its totient is φ = 270794160.

The previous prime is 473890199. The next prime is 473890271. The reversal of 473890221 is 122098374.

It can be written as a sum of positive squares in only one way, i.e., 275925321 + 197964900 = 16611^2 + 14070^2 .

It is not a de Polignac number, because 473890221 - 2⁷ = 473890093 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (473890271) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 536850 + ... + 537731.

It is an arithmetic number, because the mean of its divisors is an integer number (44236959).

Almost surely, 2^473890221 is an apocalyptic number.

It is an amenable number.

473890221 is a deficient number, since it is larger than the sum of its proper divisors (322375041).

473890221 is a wasteful number, since it uses less digits than its factorization.

473890221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074601 (or 1074591 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 473890221 is about 21769.0197528506. The cubic root of 473890221 is about 779.6372524309.

The spelling of 473890221 in words is "four hundred seventy-three million, eight hundred ninety thousand, two hundred twenty-one".