576427221 has 6 divisors (see below), whose sum is σ = 832617110. Its totient is φ = 384284808.

The previous prime is 576427193. The next prime is 576427277. The reversal of 576427221 is 122724675.

It is a happy number.

576427221 is a `hidden beast` number, since 5 + 7 + 6 + 427 + 221 = 666.

576427221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 295496100 + 280931121 = 17190^2 + 16761^2 .

It is not a de Polignac number, because 576427221 - 2⁹ = 576426709 is a prime.

It is a super-2 number, since 2×576427221² = 664536682219565682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (576427021) 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, 32023726 + ... + 32023743.

Almost surely, 2^576427221 is an apocalyptic number.

It is an amenable number.

576427221 is a deficient number, since it is larger than the sum of its proper divisors (256189889).

576427221 is a wasteful number, since it uses less digits than its factorization.

576427221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64047475 (or 64047472 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 576427221 is about 24008.8987877412. The cubic root of 576427221 is about 832.2391856734.

The spelling of 576427221 in words is "five hundred seventy-six million, four hundred twenty-seven thousand, two hundred twenty-one".