4421633 has 2 divisors, whose sum is σ = 4421634. Its totient is φ = 4421632.

The previous prime is 4421621. The next prime is 4421653. The reversal of 4421633 is 3361244.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3323329 + 1098304 = 1823^2 + 1048^2 .

It is a cyclic number.

It is not a de Polignac number, because 4421633 - 2⁴ = 4421617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4421599 and 4421608.

It is not a weakly prime, because it can be changed into another prime (4421603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2210816 + 2210817.

It is an arithmetic number, because the mean of its divisors is an integer number (2210817).

Almost surely, 2^4421633 is an apocalyptic number.

It is an amenable number.

4421633 is a deficient number, since it is larger than the sum of its proper divisors (1).

4421633 is an equidigital number, since it uses as much as digits as its factorization.

4421633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 23.

The square root of 4421633 is about 2102.7679377430. The cubic root of 4421633 is about 164.1323663670.

Adding to 4421633 its reverse (3361244), we get a palindrome (7782877).

The spelling of 4421633 in words is "four million, four hundred twenty-one thousand, six hundred thirty-three".