4065476221 has 8 divisors (see below), whose sum is σ = 4103149400. Its totient is φ = 4027952448.

The previous prime is 4065476213. The next prime is 4065476231. The reversal of 4065476221 is 1226745604.

It can be written as a sum of positive squares in 4 ways, for example, as 9696996 + 4055779225 = 3114^2 + 63685^2 .

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 4065476221 - 2³ = 4065476213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4065476231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17695 + ... + 91891.

It is an arithmetic number, because the mean of its divisors is an integer number (512893675).

Almost surely, 2^4065476221 is an apocalyptic number.

It is an amenable number.

4065476221 is a deficient number, since it is larger than the sum of its proper divisors (37673179).

4065476221 is a wasteful number, since it uses less digits than its factorization.

4065476221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74703.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 4065476221 is about 63761.0870437448. The cubic root of 4065476221 is about 1596.0156358719.

The spelling of 4065476221 in words is "four billion, sixty-five million, four hundred seventy-six thousand, two hundred twenty-one".