34532021 has 2 divisors, whose sum is σ = 34532022. Its totient is φ = 34532020.

The previous prime is 34531957. The next prime is 34532023. The reversal of 34532021 is 12023543.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26635921 + 7896100 = 5161^2 + 2810^2 .

It is a cyclic number.

It is not a de Polignac number, because 34532021 - 2⁶ = 34531957 is a prime.

Together with 34532023, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 34531984 and 34532002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34532023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17266010 + 17266011.

It is an arithmetic number, because the mean of its divisors is an integer number (17266011).

Almost surely, 2^34532021 is an apocalyptic number.

It is an amenable number.

34532021 is a deficient number, since it is larger than the sum of its proper divisors (1).

34532021 is an equidigital number, since it uses as much as digits as its factorization.

34532021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 34532021 is about 5876.3952385795. The cubic root of 34532021 is about 325.6421889976.

Adding to 34532021 its reverse (12023543), we get a palindrome (46555564).

The spelling of 34532021 in words is "thirty-four million, five hundred thirty-two thousand, twenty-one".