34345789 has 2 divisors, whose sum is σ = 34345790. Its totient is φ = 34345788.

The previous prime is 34345783. The next prime is 34345807. The reversal of 34345789 is 98754343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28440889 + 5904900 = 5333^2 + 2430^2 .

It is a cyclic number.

It is not a de Polignac number, because 34345789 - 2¹¹ = 34343741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34345783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17172894 + 17172895.

It is an arithmetic number, because the mean of its divisors is an integer number (17172895).

Almost surely, 2^34345789 is an apocalyptic number.

It is an amenable number.

34345789 is a deficient number, since it is larger than the sum of its proper divisors (1).

34345789 is an equidigital number, since it uses as much as digits as its factorization.

34345789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 43.

The square root of 34345789 is about 5860.5280478810. The cubic root of 34345789 is about 325.0557348201.

The spelling of 34345789 in words is "thirty-four million, three hundred forty-five thousand, seven hundred eighty-nine".