4427233021 has 4 divisors (see below), whose sum is σ = 4427366112. Its totient is φ = 4427099932.

The previous prime is 4427232991. The next prime is 4427233033. The reversal of 4427233021 is 1203327244.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4427233021 - 2¹⁹ = 4426708733 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 (4427233621) 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 3 ways as a sum of consecutive naturals, for example, 31770 + ... + 99316.

It is an arithmetic number, because the mean of its divisors is an integer number (1106841528).

Almost surely, 2^4427233021 is an apocalyptic number.

It is an amenable number.

4427233021 is a deficient number, since it is larger than the sum of its proper divisors (133091).

4427233021 is an equidigital number, since it uses as much as digits as its factorization.

4427233021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133090.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 4427233021 is about 66537.4557749242. The cubic root of 4427233021 is about 1642.0162863107.

The spelling of 4427233021 in words is "four billion, four hundred twenty-seven million, two hundred thirty-three thousand, twenty-one".