34544021 has 2 divisors, whose sum is σ = 34544022. Its totient is φ = 34544020.

The previous prime is 34544009. The next prime is 34544039. The reversal of 34544021 is 12044543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32890225 + 1653796 = 5735^2 + 1286^2 .

It is a cyclic number.

It is not a de Polignac number, because 34544021 - 2¹⁴ = 34527637 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34544921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17272010 + 17272011.

It is an arithmetic number, because the mean of its divisors is an integer number (17272011).

Almost surely, 2^34544021 is an apocalyptic number.

It is an amenable number.

34544021 is a deficient number, since it is larger than the sum of its proper divisors (1).

34544021 is an equidigital number, since it uses as much as digits as its factorization.

34544021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 34544021 is about 5877.4161840047. The cubic root of 34544021 is about 325.6799052350.

Adding to 34544021 its reverse (12044543), we get a palindrome (46588564).

The spelling of 34544021 in words is "thirty-four million, five hundred forty-four thousand, twenty-one".