34420829 has 2 divisors, whose sum is σ = 34420830. Its totient is φ = 34420828.

The previous prime is 34420807. The next prime is 34420889. The reversal of 34420829 is 92802443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19598329 + 14822500 = 4427^2 + 3850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34420829 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 34420795 and 34420804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34420889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17210414 + 17210415.

It is an arithmetic number, because the mean of its divisors is an integer number (17210415).

Almost surely, 2^34420829 is an apocalyptic number.

It is an amenable number.

34420829 is a deficient number, since it is larger than the sum of its proper divisors (1).

34420829 is an equidigital number, since it uses as much as digits as its factorization.

34420829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 34420829 is about 5866.9267082519. The cubic root of 34420829 is about 325.2922940438.

The spelling of 34420829 in words is "thirty-four million, four hundred twenty thousand, eight hundred twenty-nine".