4427031661 has 8 divisors (see below), whose sum is σ = 4869010944. Its totient is φ = 3999543600.

The previous prime is 4427031619. The next prime is 4427031667. The reversal of 4427031661 is 1661307244.

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

It is not a de Polignac number, because 4427031661 - 2⁷ = 4427031533 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 (4427031667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3622165 + ... + 3623386.

It is an arithmetic number, because the mean of its divisors is an integer number (608626368).

Almost surely, 2^4427031661 is an apocalyptic number.

It is an amenable number.

4427031661 is a deficient number, since it is larger than the sum of its proper divisors (441979283).

4427031661 is a wasteful number, since it uses less digits than its factorization.

4427031661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7245611.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 4427031661 is about 66535.9426250204. The cubic root of 4427031661 is about 1641.9913917990.

The spelling of 4427031661 in words is "four billion, four hundred twenty-seven million, thirty-one thousand, six hundred sixty-one".