34343021 has 2 divisors, whose sum is σ = 34343022. Its totient is φ = 34343020.

The previous prime is 34343011. The next prime is 34343033. The reversal of 34343021 is 12034343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27510025 + 6832996 = 5245^2 + 2614^2 .

It is a cyclic number.

It is not a de Polignac number, because 34343021 - 2¹⁸ = 34080877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 34342984 and 34343002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34343011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17171510 + 17171511.

It is an arithmetic number, because the mean of its divisors is an integer number (17171511).

Almost surely, 2^34343021 is an apocalyptic number.

It is an amenable number.

34343021 is a deficient number, since it is larger than the sum of its proper divisors (1).

34343021 is an equidigital number, since it uses as much as digits as its factorization.

34343021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 34343021 is about 5860.2918869285. The cubic root of 34343021 is about 325.0470022751.

Adding to 34343021 its reverse (12034343), we get a palindrome (46377364).

The spelling of 34343021 in words is "thirty-four million, three hundred forty-three thousand, twenty-one".