4463021 has 4 divisors (see below), whose sum is σ = 4474044. Its totient is φ = 4452000.

The previous prime is 4463009. The next prime is 4463023. The reversal of 4463021 is 1203644.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1525225 + 2937796 = 1235^2 + 1714^2 .

It is a cyclic number.

It is not a de Polignac number, because 4463021 - 2⁶ = 4462957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4462984 and 4463002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4463023) 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, 4880 + ... + 5721.

It is an arithmetic number, because the mean of its divisors is an integer number (1118511).

Almost surely, 2^4463021 is an apocalyptic number.

It is an amenable number.

4463021 is a deficient number, since it is larger than the sum of its proper divisors (11023).

4463021 is a wasteful number, since it uses less digits than its factorization.

4463021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11022.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 4463021 is about 2112.5863295970. The cubic root of 4463021 is about 164.6428885078.

Adding to 4463021 its reverse (1203644), we get a palindrome (5666665).

The spelling of 4463021 in words is "four million, four hundred sixty-three thousand, twenty-one".