4423003661 has 4 divisors (see below), whose sum is σ = 4615308192. Its totient is φ = 4230699132.

The previous prime is 4423003657. The next prime is 4423003691. The reversal of 4423003661 is 1663003244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4423003661 - 2² = 4423003657 is a prime.

It is a super-2 number, since 2×4423003661² = 39125922770438805842, 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 (4423003691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96152231 + ... + 96152276.

It is an arithmetic number, because the mean of its divisors is an integer number (1153827048).

Almost surely, 2^4423003661 is an apocalyptic number.

It is an amenable number.

4423003661 is a deficient number, since it is larger than the sum of its proper divisors (192304531).

4423003661 is a wasteful number, since it uses less digits than its factorization.

4423003661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192304530.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 4423003661 is about 66505.6663826474. Note that the first 3 decimals coincide. The cubic root of 4423003661 is about 1641.4932439972.

The spelling of 4423003661 in words is "four billion, four hundred twenty-three million, three thousand, six hundred sixty-one".