34343521 has 2 divisors, whose sum is σ = 34343522. Its totient is φ = 34343520.

The previous prime is 34343513. The next prime is 34343557. The reversal of 34343521 is 12534343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30691600 + 3651921 = 5540^2 + 1911^2 .

It is an emirp because it is prime and its reverse (12534343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34343521 - 2³ = 34343513 is a prime.

It is not a weakly prime, because it can be changed into another prime (34343581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17171760 + 17171761.

It is an arithmetic number, because the mean of its divisors is an integer number (17171761).

Almost surely, 2^34343521 is an apocalyptic number.

It is an amenable number.

34343521 is a deficient number, since it is larger than the sum of its proper divisors (1).

34343521 is an equidigital number, since it uses as much as digits as its factorization.

34343521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 25.

The square root of 34343521 is about 5860.3345467644. The cubic root of 34343521 is about 325.0485797204.

Adding to 34343521 its reverse (12534343), we get a palindrome (46877864).

The spelling of 34343521 in words is "thirty-four million, three hundred forty-three thousand, five hundred twenty-one".