4534021 has 2 divisors, whose sum is σ = 4534022. Its totient is φ = 4534020.

The previous prime is 4534009. The next prime is 4534031. The reversal of 4534021 is 1204354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4468996 + 65025 = 2114^2 + 255^2 .

It is a cyclic number.

It is not a de Polignac number, because 4534021 - 2¹¹ = 4531973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4534021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4534031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2267010 + 2267011.

It is an arithmetic number, because the mean of its divisors is an integer number (2267011).

Almost surely, 2^4534021 is an apocalyptic number.

It is an amenable number.

4534021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4534021 is an equidigital number, since it uses as much as digits as its factorization.

4534021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 4534021 is about 2129.3240711550. The cubic root of 4534021 is about 165.5113733996.

Adding to 4534021 its reverse (1204354), we get a palindrome (5738375).

The spelling of 4534021 in words is "four million, five hundred thirty-four thousand, twenty-one".